SKIP TO CONTENT

biologist

/baɪˈɑlədʒɪst/

/baɪˈɒlədʒɪst/

Other forms: biologists

A biologist is a scientist who focuses on living organisms, including plants and animals. Wildlife biologists might specialize in studying African elephants.

Biologists study a wide variety of life forms, from single-celled organisms to primates, and conduct research in many different areas, from the spreading of pathogens to the details of evolution. A marine biologist studies sea creatures and a microbiologist might study algae or bacteria. The word biologist is rooted in the Greek bios, or "life."

Definitions of biologist
  1. noun
    (biology) a scientist who studies living organisms
    synonyms: life scientist
    see moresee less
    examples:
    show 9 examples...
    hide 9 examples...
    George Wells Beadle
    United States biologist who discovered how hereditary characteristics are transmitted by genes (1903-1989)
    Alexis Carrel
    French surgeon and biologist who developed a way to suture and graft blood vessels (1873-1944)
    Rachel Louise Carson
    United States biologist remembered for her opposition to the use of pesticides that were hazardous to wildlife (1907-1964)
    Max Delbruck
    United States biologist (born in Germany) who studied how viruses infect living cells (1906-1981)
    Ernst Heinrich Haeckel
    German biologist and philosopher; advocated Darwinism and formulated the theory of recapitulation; was an exponent of materialistic monism (1834-1919)
    Thomas Henry Huxley
    English biologist and a leading exponent of Darwin's theory of evolution (1825-1895)
    Sir John Cowdery Kendrew
    English biologist noted for studies of the molecular structure of blood components (born in 1917)
    Thomas Hunt Morgan
    United States biologist who formulated the chromosome theory of heredity (1866-1945)
    Louis Pasteur
    French chemist and biologist whose discovery that fermentation is caused by microorganisms resulted in the process of pasteurization (1822-1895)
    types:
    show 32 types...
    hide 32 types...
    bacteriologist
    a biologist who studies bacteria
    botanist, phytologist, plant scientist
    a biologist specializing in the study of plants
    cytologist
    a biologist who studies the structure and function of cells
    ecologist
    a biologist who studies the relation between organisms and their environment
    geneticist
    a biologist who specializes in genetics
    microbiologist
    a specialist in microbiology
    molecular biologist
    a biologist who studies the structure and activity of macromolecules essential to life
    natural scientist, naturalist
    a biologist knowledgeable about natural history (especially botany and zoology)
    neurobiologist
    a specialist in neurobiology
    physiologist
    a biologist specializing in physiology
    radiobiologist
    a biologist who studies the effects of radiation on living organisms
    sociobiologist
    a biologist who studies the biological determinants of social behavior
    systematist, taxonomer, taxonomist
    a biologist who specializes in the classification of organisms into groups on the basis of their structure and origin and behavior
    vivisectionist
    a biologist who cuts open live animals for research
    animal scientist, zoologist
    a specialist in the branch of biology dealing with animals
    cytogeneticist
    a geneticist who specializes in the cellular components associated with heredity
    bug-hunter, bugologist, entomologist
    a zoologist who studies insects
    ethologist
    a zoologist who studies the behavior of animals in their natural habitats
    herpetologist
    a zoologist who studies reptiles and amphibians
    ichthyologist
    a zoologist who studies fishes
    lumper
    a taxonomist who classifies organisms into large groups on the basis of major characteristics
    malacologist
    a zoologist specializing in the study of mollusks
    mammalogist
    one skilled in the study of mammals
    mycologist
    a botanist who specializes in the study of fungi
    neuroscientist
    a neurobiologist who specializes in the study of the brain
    bird watcher, ornithologist
    a zoologist who studies birds
    pomologist
    someone versed in pomology or someone who cultivates fruit trees
    propagator
    someone who propagates plants (as under glass)
    protozoologist
    a zoologist who studies protozoans
    divider, splitter
    a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics
    virologist
    a specialist in virology
    Gray, Louis Harold Gray
    English radiobiologist in whose honor the gray (the SI unit of energy for the absorbed dose of radiation) was named (1905-1965)
    type of:
    scientist
    a person with advanced knowledge of one or more sciences
Pronunciation
US

/baɪˈɑlədʒɪst/

UK

/baɪˈɒlədʒɪst/

Cite this entry
Style:
MLA
  • MLA
  • APA
  • Chicago

Copy citation
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘biologist'. Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors. Send us feedback
Word Family
EDITOR'S CHOICE

Look up biologist for the last time

Close your vocabulary gaps with personalized learning that focuses on teaching the words you need to know.

VocabTrainer - Vocabulary.com's Vocabulary Trainer