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Biology Dictionary
COVID-19 Tracker
Topics
Biology A-Z
Cell
Biochemistry
Human
Genetics
Zoology
Botany
Ecology
Anatomy & Physiology
Molecular
Microbiology
Neuroscience
Articles
Animal Kingdom
Tutorials
AP Biology
NGSS High School
News & Stories
Latest News
Editors’ Picks
Weekly Digest
Fun
Quotes about Biology
Human Biology
Abdomen
August 14, 2017
Abdominal Cavity
March 19, 2017
Action Potential
June 9, 2020
Active Immunity
November 18, 2016
Adipocyte
June 15, 2021
Adipose Tissue
May 24, 2020
Adrenal Gland
July 30, 2017
Agonist
May 15, 2017
Alanine Aminotransferase
December 6, 2020
Aldosterone
June 18, 2019
Alimentary Canal
February 27, 2017
Allantois
April 4, 2017
Amino Acids
January 9, 2020
Amnion
June 2, 2017
Amniotic Fluid
June 24, 2017
Anaphase
December 21, 2016
Anaphase I
May 29, 2019
Anaplasia
November 12, 2016
Anatomical Position
January 3, 2017
Anatomy
January 23, 2018
Animal Cell
April 4, 2017
Antecubital Fossa
April 5, 2017
Anthropometry
May 15, 2017
Antibody
April 22, 2018
Antioxidant
May 2, 2017
Apoplexy
February 26, 2018
Apoptosis
June 6, 2017
Articular Cartilage
April 26, 2019
Atavism
June 9, 2017
Atrophy
June 12, 2017
Autonomic Nervous System
February 23, 2017
Autopsy
September 8, 2017
Autosomal Dominant
June 27, 2020
Axon Terminal
May 16, 2020
B Cells
October 4, 2020
Barr Body
March 19, 2017
Basal Cell
May 31, 2021
Beta Oxidation
June 2, 2017
Biceps Femoris
May 19, 2020
Bilateral Symmetry
February 14, 2017
Bile Salts
November 20, 2019
Bilirubin
April 1, 2018
Biofilm
August 6, 2017
Biogeography
May 5, 2017
Biomechanics
February 12, 2018
Biophysics
July 30, 2017
Biopsy
May 26, 2017
Bipedalism
June 13, 2017
Blastocyst
June 14, 2017
Blood
July 26, 2017
Blood Cell
May 30, 2021
Blood Urea Nitrogen (BUN) Test
July 4, 2017
Body Cavity
March 15, 2018
Body Systems
April 27, 2017
Bone Cells
May 11, 2021
Brain
July 26, 2017
Brain Cells
April 9, 2021
Branched Chain Amino Acids
January 8, 2020
Broca’s Area
May 9, 2020
Bronchioles
March 1, 2017
Calmodulin
June 25, 2017
Capillary
December 28, 2020
CAR T Cells
May 15, 2021
Carcinoma
June 12, 2017
Cardiac Cycle
February 12, 2017
Cardiac Muscle
December 8, 2017
Cartilage
April 25, 2019
Cell Differentiation
June 20, 2018
Cell Division
December 15, 2016
Cell Membrane
March 13, 2017
Cell Nucleus
July 30, 2017
Cell Theory
December 15, 2016
Cellular Senescence
May 26, 2017
Central Nervous System
February 23, 2017
Cephalic Vein
June 4, 2020
Cerebrum
November 23, 2020
Ceruloplasmin
July 4, 2017
Cervical Vertebrae
April 19, 2019
Channel Protein
June 20, 2018
Chemokines
July 4, 2017
Chorion
June 8, 2017
Choroid Plexus
June 27, 2020
Chromosome
December 13, 2016
Chyme
February 13, 2017
Cilium
June 25, 2017
Circadian Rhythm
May 14, 2020
Circulatory System
March 3, 2017
Cladistics
June 12, 2017
Codominance
December 20, 2016
Coenzyme
November 15, 2016
Cognitive Development
May 26, 2017
Common Descent
June 12, 2017
Compact Bone
February 27, 2017
Complete Dominance
January 4, 2017
Connective Tissue
October 11, 2020
Coronal Plane
February 21, 2017
Coronary Sinus
July 21, 2020
Corpus Luteum
December 8, 2017
Creatine Kinase
May 13, 2018
Cricoid Cartilage
April 26, 2019
Cytokinesis
December 21, 2016
Cytotoxic T Cell
May 9, 2021
Daughter Cells
October 25, 2018
Deletion Mutation
February 20, 2017
Deltoid Muscle
September 20, 2020
Dendritic Cells
July 17, 2020
Desmosomes
April 14, 2017
Diastole
February 12, 2017
Digastric Muscle
December 8, 2017
Digestive System
February 13, 2017
Dihybrid Cross
January 23, 2018
Diploid
January 7, 2018
DNA
May 27, 2017
DNA Fingerprinting
May 16, 2017
DNA Polymerase
May 24, 2020
DNA Sequencing
June 23, 2017
Domain
April 17, 2019
Dominant Trait
January 13, 2017
Dorsal Cavity
April 17, 2019
Ductus Arteriosus
October 22, 2020
Dynamic Equilibrium
February 9, 2017
Ear
September 7, 2017
Ectoderm
June 9, 2017
Elastic Cartilage
April 26, 2019
Embalming
July 4, 2017
Embryo
July 4, 2017
Embryology
January 23, 2018
Embryonic Stem Cells
May 20, 2021
Embryonic Stem Cells
March 15, 2018
Endocannabinoid System
December 28, 2020
Endocrine Glands
September 8, 2017
Endocrine System
February 13, 2017
Endoderm
June 9, 2017
Endoskeleton
April 5, 2017
Endosymbiotic Theory
February 10, 2017
Endothelium
June 6, 2017
Ependymal Cell
April 21, 2021
Epithelial Cells
May 17, 2020
Epithelial Tissue
December 25, 2016
Esophagus
March 2, 2017
Essential Amino Acids
April 21, 2020
Euthymic
December 29, 2016
Excretion
April 17, 2019
Excretory System
March 19, 2017
Exercise Physiology
July 4, 2017
Exocrine Glands
April 27, 2017
Exon
August 6, 2017
Exoskeleton
April 5, 2017
Expressive Aphasia
November 23, 2020
External Respiration
February 12, 2017
Extracellular Fluid
February 14, 2017
Eyes
September 7, 2017
Facial Nerve
October 11, 2020
Facultative Anaerobe
October 7, 2018
Fallopian Tube
July 10, 2020
Fat
May 7, 2017
Fat Cells
May 13, 2021
Fatty Acids
May 5, 2017
Fecundity
February 10, 2017
Feedback Mechanism
December 6, 2020
Fertilization
December 4, 2016
Fetus
July 4, 2017
Fluoride
April 1, 2018
Fontanelle
September 24, 2020
Foot
July 25, 2017
Fossil Record
January 7, 2018
Gamete
April 12, 2017
Gardnerella Vaginalis
January 13, 2020
Gastrulation
January 25, 2017
Gene
May 21, 2019
Gene Pool
February 13, 2017
Genetic Code
May 16, 2017
Genetic Equilibrium
January 7, 2018
Genetic Variation
January 7, 2018
Geriatrics
July 30, 2017
Gerontology
April 27, 2017
Gland
June 24, 2017
Gluteus Maximus
August 2, 2020
Glycerol
June 23, 2017
Glycogen
June 9, 2017
Glycogenesis
April 17, 2019
Glycogenolysis
February 13, 2017
Glycoprotein
January 22, 2021
Goblet Cells
June 9, 2020
Golgi Apparatus
November 18, 2016
Gonad
November 12, 2016
Granulation Tissue
January 25, 2017
Haploid
January 7, 2018
Head
July 26, 2017
Heart
July 26, 2017
Helper T Cell
April 22, 2021
Hematopoiesis
June 12, 2017
Heme
March 15, 2018
Heredity
December 21, 2016
Heterozygous
December 6, 2016
Hip Muscles
June 27, 2020
Histology
January 23, 2018
Homeostasis
October 29, 2016
Homologous
November 3, 2016
Homologous Chromosomes
November 8, 2016
Homologous Structures
November 14, 2016
Hormone
January 23, 2018
Human Biology
May 26, 2017
Humoral Immunity
December 28, 2020
Hyaline Cartilage
January 20, 2017
Hydrochloric Acid
April 23, 2020
Hyperplasia
July 4, 2017
Hypertonic Solution
January 20, 2017
IGF-1
July 17, 2020
In Vivo
October 19, 2020
Incomplete Dominance
November 27, 2016
Independent Assortment
December 29, 2016
Integral Protein
August 25, 2018
Integumentary System
March 19, 2017
Intercostal Muscles
November 18, 2016
Internal Respiration
February 12, 2017
Interphase
December 17, 2016
Interstitial Fluid
February 12, 2017
Intracellular Fluid
February 14, 2017
Intrinsic Factor
November 12, 2020
Intron
August 6, 2017
Isomer
June 12, 2017
Isotonic Solution
February 9, 2017
Junctional Rhythm
May 14, 2020
Ketone Bodies
February 26, 2018
Kidney
July 22, 2020
Krebs Cycle
January 12, 2017
Labia
July 4, 2017
Lactate Dehydrogenase
April 8, 2018
Lamina Propria
March 15, 2018
Langerhans Cell
April 26, 2021
Latissimus Dorsi
June 11, 2020
Law of Segregation
January 27, 2017
Lesion
June 12, 2017
Levator Scapulae
May 20, 2020
Ligand
April 22, 2018
Limbic System
May 10, 2020
Lipid
February 24, 2021
Lipid Bilayer
April 17, 2019
Lipolysis
September 17, 2018
Liposome
February 26, 2018
Liver
July 26, 2017
Lumbar Vertebrae
April 19, 2019
Lymph
April 17, 2019
Lymphatic System
March 19, 2017
Maceration
January 25, 2017
Mammary Glands
October 11, 2020
Mastication
January 31, 2017
Mastoid Process
September 3, 2020
Maxillary Sinus
September 5, 2020
Median Lethal Dose
February 11, 2018
Mesentery
May 13, 2018
Mesoderm
June 13, 2017
Meta-analysis
June 1, 2020
Metaphase
December 21, 2016
Metaphase I
June 18, 2019
Metastasize
January 27, 2017
Midsagittal Plane
June 18, 2019
Miosis
February 10, 2017
Missense Mutation
August 15, 2018
Mitochondria
March 3, 2017
Mitochondrion
September 7, 2017
Monohybrid Cross
January 26, 2017
Monosomy
March 3, 2017
Motor Neuron
May 13, 2020
Mucous Membrane
January 31, 2017
Multicellular
November 22, 2016
Muscle
December 8, 2017
Muscle Atrophy
October 28, 2020
Muscle Cell
December 8, 2017
Muscle Tissue
December 8, 2017
Muscular System
February 10, 2017
Mutation
April 5, 2017
Myelin Sheath
February 10, 2017
Myofibril
May 18, 2017
Natural Killer Cells
April 28, 2021
Negative Feedback
July 30, 2017
Nephrology
June 23, 2017
Nephron
February 10, 2017
Nerve Cell
April 2, 2021
Nervous System
February 14, 2017
Nervous Tissue
February 28, 2017
Neurogenesis
May 14, 2017
Neuromuscular Junction
April 17, 2021
Neuron
June 28, 2020
Neuroscience
May 2, 2017
NMDA Receptor
June 13, 2017
Nocebo Effect
April 22, 2018
Nondisjunction
October 27, 2016
Nonsense Mutation
August 26, 2018
Notochord
March 15, 2018
Nuclear Fallout
February 12, 2018
Nucleic Acid
September 7, 2017
Occipital Bone
June 11, 2020
Occipital Lobe
May 25, 2020
Omnivore
December 9, 2016
Oncology
June 23, 2017
Optic Nerve
August 25, 2020
Organ
October 30, 2016
Organ System
October 31, 2016
Ovary
July 4, 2017
Overpopulation
August 19, 2017
Oxidizing Agent
June 23, 2017
Oxygen Saturation
October 28, 2020
P Wave
July 26, 2020
Paraphyletic
October 7, 2018
Parasympathetic Nervous System
January 3, 2017
Parathyroid Gland
July 6, 2017
Parenchyma
May 26, 2017
Parietal Lobe
May 14, 2020
Parotid Gland
July 4, 2017
Paroxysm
January 13, 2017
Passive Immunity
November 17, 2016
Pathology
April 27, 2017
Pectoralis Major
July 30, 2020
Peptide Hormones
August 21, 2018
Peripheral Nervous System
February 26, 2017
Peripheral Proteins
August 15, 2018
Perspiration
February 14, 2017
Phalanx
December 23, 2016
Pharmacology
June 14, 2017
Pharynx
December 8, 2017
Phenotype
November 28, 2016
Phrenic Nerve
March 23, 2021
Physiology
May 15, 2017
Pineal Gland
July 30, 2017
Pituitary Gland
September 8, 2017
Placenta
July 25, 2017
Plantar Flexion
May 16, 2020
Plasma Cells
April 12, 2021
Point Mutation
November 22, 2016
Polygenic Inheritance
February 13, 2017
Polygenic Traits
November 24, 2016
Polyp
January 3, 2017
Pons
November 3, 2020
Porphyrin
March 15, 2018
PR Interval
November 1, 2020
Prenatal Development
March 15, 2018
Prometaphase
December 17, 2016
Prone Position
February 24, 2018
Prophase
December 17, 2016
Prophase I
May 29, 2019
Prophase II
June 18, 2019
Prostate Gland
June 24, 2017
Prosthesis
May 17, 2017
Protein Synthesis
July 18, 2020
Pseudostratified Columnar Epithelium
January 6, 2017
Psychoanalytic Theory
December 10, 2020
Pulmonary Artery
November 1, 2020
Pulmonary Vein
June 1, 2020
Pulse Pressure
November 1, 2020
Punnett Square
November 6, 2016
Pyloric Sphincter
November 15, 2016
Receptor
February 27, 2018
Recessive Gene
December 25, 2016
Recessive Trait
December 23, 2016
Recombinant DNA
January 20, 2017
Red Blood Cell
May 5, 2021
Residual Volume
December 16, 2016
Respiratory System
February 13, 2017
Reticular Formation
May 25, 2020
Rigor Mortis
April 20, 2020
Sagittal Plane
February 21, 2017
Salivary Glands
June 24, 2017
Sarcolemma
March 1, 2017
Satellite Cells
May 23, 2021
Schwann Cells
September 20, 2020
Sebaceous Glands
June 24, 2017
Secondary Consumer
December 9, 2016
Secretion
June 2, 2017
Seminal Vesicle
May 25, 2020
Serous Membrane
July 4, 2017
Serratia Marcescens
March 16, 2020
Sex Chromosomes
November 16, 2016
Sexual Intercourse
February 12, 2017
Sexual Reproduction
November 12, 2016
Signal Transduction
March 12, 2018
Simple Columnar Epithelium
January 14, 2017
Simple Cuboidal Epithelium
January 12, 2017
Simple Squamous Epithelium
December 27, 2016
Skeletal Muscle
December 8, 2017
Skeletal System
March 19, 2017
Skeleton
September 7, 2017
Skin
July 9, 2017
Skin Cell
May 4, 2021
Small Intestine
September 8, 2017
Smooth Muscle
December 8, 2017
Somatic Cells
January 4, 2017
Somatic Nervous System
March 3, 2017
Sperm Cell
May 15, 2021
Spindle Fibers
September 17, 2018
Spirochete
April 14, 2017
Spleen
July 26, 2017
Squamous Cell
May 5, 2021
Stabilizing Selection
June 20, 2018
Stem Cell
May 7, 2021
Stomach
September 8, 2017
Stop Codon
May 7, 2020
Stratified Cuboidal Epithelium
October 25, 2018
Stratified Squamous Epithelium
January 3, 2017
Stroma
November 18, 2016
Subclavian Artery
June 8, 2020
Submandibular Gland
November 20, 2019
Substitution Mutation
June 20, 2018
Sulfuric Acid
December 29, 2019
Supine Position
February 12, 2018
Suprachiasmatic Nucleus
March 15, 2018
Swollen Glands
July 6, 2017
Sympathetic Nervous System
February 23, 2017
Synovial Joint
April 5, 2017
Systole
February 12, 2017
T Cell Immunity
May 26, 2021
T Cells
August 24, 2020
Teeth
September 7, 2017
Telomerase
July 25, 2017
Telophase
December 21, 2016
Temporal Lobe
May 27, 2020
Test Cross
August 25, 2018
Thalamus
June 3, 2020
Thoracic Cavity
February 21, 2017
Thoracic Vertebrae
April 19, 2019
Thymus Gland
July 4, 2017
Thyroid Gland
July 30, 2017
Tissue
December 4, 2016
Toxicity
April 1, 2018
Toxin
April 1, 2018
Transferrin
September 17, 2018
Transitional Epithelium
January 12, 2017
Transverse Plane
February 21, 2017
Treponema Pallidum
April 18, 2020
Trigeminal Nerve
May 27, 2020
Trisomy 21 (Down Syndrome)
January 20, 2017
Tubular Secretion
June 2, 2017
Turgid
January 11, 2017
Ulnar Nerve
May 15, 2020
Urethra
June 17, 2019
Urinary Bladder
June 12, 2017
Urinary System
June 18, 2019
Uterus
September 8, 2017
Vagus Nerve
May 27, 2020
Valsalva Maneuver
November 1, 2020
Vasoconstriction
July 18, 2020
Vasodilation
January 10, 2017
Ventral Cavity
April 17, 2019
Vertebral Column
February 12, 2017
Vestigial Structures
January 20, 2017
Virus
August 25, 2018
Vital Capacity
February 12, 2017
Viviparous
January 20, 2017
Water Potential
March 19, 2017
White Blood Cell
June 9, 2021
Y Chromosome
June 7, 2020
Yersinia Pestis
December 10, 2020
Zygomatic Arch
April 5, 2017
Zygote
December 6, 2016
