biology

noun

bi·​ol·​o·​gy bī-ˈä-lə-jē 

1

: a branch of knowledge that deals with living organisms and vital processes

advances in the field of biology

a biology textbook

2

a

: the plant and animal life of a region or environment

the biology of the rainforest

b

: the life processes especially of an organism or group

the biology of cancer cells

broadly : ecology

biologist

bī-ˈä-lə-jist 

noun

Examples of biology in a Sentence

advances in the field of biology

the biology of the rain forest

the biology of tumor cells

Recent Examples on the Web

His work transformed computational biology and drug discovery, earning him and Hassabis Nobel Prizes and cementing DeepMind’s reputation as a lab capable of solving grand scientific challenges. — Reed Albergotti, semafor.com, 23 June 2026

Meanwhile, Dario Amodei, Anthropic’s CEO, recently told Bloomberg’s Emily Chang that Anthropic intends to do more around biology; Jumper’s hiring is no doubt part of that plan. — Jeremy Kahn, Fortune, 23 June 2026

One important topic to contemplate is just how expansive the scope of Anthropic’s ambitions in the world of biology will prove to be. — Rob Toews, Forbes.com, 22 June 2026

Fragrance founders, perfumers and health writers all describe these scents as products that tap into human biology. — Lauren Jarvis-Gibson, Miami Herald, 22 June 2026

Word History

Etymology

German Biologie, from bi- + -logie -logy

First Known Use

1799, in the meaning defined at sense 1

Phrases Containing biology

• cell biology
• developmental biology
• evolutionary biology
• evolutionary developmental biology
• molecular biology

Rhymes for biology

• ology
• aetiology
• anthropology
• archaeology
• archeology
• audiology
• cardiology
• climatology
• cohomology
• cosmetology
• criminology
• demonology

Kids Definition

biology

noun

bi·​ol·​o·​gy bī-ˈäl-ə-jē 

1

: a branch of knowledge that deals with living organisms and life processes

2

a

: the plant and animal life of a region or environment

b

: the life processes of an organism or group

biologist

-jəst 

noun

Etymology

from German Biologie "biology," derived from Greek bi-, bio- "life" and -logia "study, science"

Medical Definition

biology

noun

bi·​ol·​o·​gy -jē 

plural biologies

1

: a branch of science that deals with living organisms and vital processes

2

a

: the plant and animal life of a region or environment

b

: the laws and phenomena relating to an organism or group

3

: a treatise on biology