Home Page
About
Categories
Animals
Body and appearance
Business
Clothes and fashion
Crime and law
Culture
Education
Family and life stages
Food and drink
Health
Houses and buildings
Language
Leisure
Nature
Personality and emotions
Religion and politics
Retail
Science
Social issues
Technology
The media
Travel and tourism
War and conflict
Work
Browse Dictionary
Blog
Contact
Browse Topic Dictionaries
Build your topic vocabulary with these mini-dictionaries, which are groups of words related to common subject areas.
Choose a topic area from the list below to get started.
Categories Home
/
Science
/
The Natural Sciences
/
Cell Biology
Categories Home
Science
Engineering
Devices
How machines work
Materials and properties
Structures
Mathematics
Mathematical terminology
Types of mathematics
The natural sciences
Cell biology
Electronics
Energy and physical forces
Experiments and research
Genetic engineering
Molecules and matter
amino acid
antibody
antigen
axon
biological
carbohydrate
cell
chlorophyll
chloroplast
chromosome
clone
dendrite
divide
division
DNA
embryo
enzyme
evolution
evolutionary
evolve
fertilize
fetus
filament
fission
fit
fossil
gene
genetic
genetic code
killer cell
lipid
meiosis
membrane
mitochondrion
mitosis
mutation
neuron
neurotransmitter
nucleus
organism
ovum
photosynthesis
protein
receptor
reproduce
respiration
RNA
sequence
species
specimen
stem cell
stimulus
survival
synthesis
synthesize
tissue
vesicle
wall
X chromosome
Y chromosome