Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

biology

play
noun bi·ol·o·gy \bī-ˈä-lə-jē\

Simple 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

Full Definition of biology

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

  2. 2 a :  the plant and animal life of a region or environment b :  the life processes especially of an organism or group; broadly :  ecology

bi·ol·o·gist play \-jist\ noun

Examples of biology

  1. advances in the field of biology

  2. the biology of the rain forest

  3. the biology of tumor cells



Origin of biology

German Biologie, from bi- + -logie -logy


First Known Use: 1819


BIOLOGIST Defined for Kids

biologist

noun bi·ol·o·gist \bī-ˈä-lə-jəst\

Definition of biologist

  1. :  a person specializing in biology




Medical Dictionary

biology

play
noun bi·ol·o·gy \-jē\

Medical Definition of biology

plural bi·ol·o·gies

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

  2. 2a:  the plant and animal life of a region or environmentb:  the laws and phenomena relating to an organism or group

  3. 3:  a treatise on biology




Learn More about biology


Seen and Heard

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

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet spindrift pince-nez kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ