biology

noun
bi·​ol·​o·​gy | \bī-ˈä-lə-jē \

Definition of biology 

1 : a branch of knowledge that deals with living organisms and vital processes advances in the field of biology a biology textbook

2a : the plant and animal life of a region or environment the biology of the rain forest

b : the life processes especially of an organism or group the biology of cancer cells broadly : ecology

Keep scrolling for more

Other Words from biology

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
See More

Recent Examples on the Web

In July 1925 high school biology teacher John T. Scopes went on trial in Dayton, Tenn., charged with violating a state law by teaching Darwin's Theory of Evolution in a public school. sandiegouniontribune.com, "July 11, 1925: Scopes trial begins," 11 July 2018 By Sharon Moalem As a biology teacher, I have been fascinated with the fact that harmful genes (like sickle cell and cystic fibrosis) stay in populations. Sarah Mupo, STAT, "The 39 best health and science books to read this summer," 25 June 2018 The groom’s mother retired as an advanced placement biology teacher at DeKalb High School in DeKalb, Ill. New York Times, "Rachel Machta, James Polans," 10 June 2018 Miranda Nicole Pauley, 34, was a biology teacher at Patrick Henry High School in Ashland, Virginia. Steve Helling, PEOPLE.com, "Virginia Biology Teacher, 34, Accused of Sex with Minor," 6 June 2018 Fabienne Mondesir, a Boston area public school biology teacher who’s taking a year sabbatical to lead engagement at Harvard’s pgEd program said that moving beyond just talk will take concrete tools people can bring back to their communities. Megan Molteni, WIRED, "Crispr Fans Fight for Egalitarian Access to Gene Editing," 6 June 2018 Robert Crosland, a biology teacher at Preston Junior High School, has been accused of misdemeanor animal cruelty, the Associated Press reported. Alex Horton, Washington Post, "Middle school teacher charged for feeding live puppy to snapping turtle while students watched," 3 June 2018 Miranda Nicole Pauley, a 34-year-old biology teacher at Patrick Henry High School in Ashland, Va., faces four felony counts of indecent liberties by a custodian and one felony count of use of a communication system for crimes against children. Andrew O'reilly, Fox News, "High school biology teacher, 34, accused of having sex with student," 3 June 2018 Robert Crosland, a biology teacher at Preston Junior High School, has been accused of misdemeanor animal cruelty, the Associated Press reported. The Washington Post, NOLA.com, "Idaho teacher charged after feeding sick puppy to snapping turtle while students watched," 3 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of biology

1799, in the meaning defined at sense 1

History and Etymology for biology

German Biologie, from bi- + -logie -logy

Keep scrolling for more

Learn More about biology

Statistics for biology

Last Updated

25 Oct 2018

Look-up Popularity

Time Traveler for biology

The first known use of biology was in 1799

See more words from the same year

Keep scrolling for more

More Definitions for biology

biology

noun

English Language Learners Definition of biology

: a science that deals with things that are alive (such as plants and animals)

: the plant and animal life of a particular place

: the processes that occur in a living thing

biology

noun
bi·​ol·​o·​gy | \bī-ˈä-lə-jē \

Kids Definition of biology

: a science that deals with living things and their relationships, distribution, and behavior

biology

noun
bi·​ol·​o·​gy | \-jē \
plural biologies

Medical Definition of biology 

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

2a : 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

Keep scrolling for more

Comments on biology

What made you want to look up biology? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by force of circumstances

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!