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

Medical Dictionary

biological

adjective

Medical Definition of biological

  1. 1:  of or relating to biology or to life and living processes

  2. 2:  used in or produced by applied biology

  3. 3:  related by direct genetic relationship rather than by adoption or marriage <an adoptee who searched for years for her biological parents>

biologically \-i-k(ə-)lē\play adverb


Variants of biological

also biologic


Seen and Heard

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

WORD OF THE DAY

to eat gluttonously or ravenously

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1926873504

Which of the following best describes an easily irritated person?

superficial gregarious tetchy flashy
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ