biology

noun

bi·​ol·​o·​gy bī-ˈä-lə-jē How to pronounce biology (audio)
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 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The post is replete with myths and false transphobic stereotypes, particularly revolving around the narratives that gender and biology are inextricable and that trans women are dangerous. Aja Romano, Vox, 18 Apr. 2025 However, with decades in Cincinnati, it is believed that the Lazarus lizards may be evolving to navigate the more urban environment, Eric Gangloff, a biology professor at Ohio Wesleyan University, told National Geographic. Charna Flam, People.com, 16 Apr. 2025 But scalability is not just about automation—if CAR-T biology were optimized, manufacturing time could potentially be reduced from 14 days to 48 hours or less, as some recent research suggests. Behzad Mahdavi, Forbes.com, 14 Apr. 2025 First, my kid was inspired by Earle to pursue studies in marine biology. ArsTechnica, 11 Apr. 2025 See All Example Sentences for biology

Word History

Etymology

German Biologie, from bi- + -logie -logy

First Known Use

1799, in the meaning defined at sense 1

Time Traveler
The first known use of biology was in 1799

Browse Nearby Words

Cite this Entry

“Biology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biology. Accessed 22 Apr. 2025.

Kids Definition

biology

noun
bi·​ol·​o·​gy bī-ˈäl-ə-jē How to pronounce biology (audio)
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 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 How to pronounce biology (audio)
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

More from Merriam-Webster on biology

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