biological

adjective
bi·​o·​log·​i·​cal | \ ˌbī-ə-ˈlä-ji-kəl \
variants: or less commonly biologic \ ˌbī-​ə-​ˈlä-​jik \

Definition of biological

1 : of or relating to biology or to life and living processes
2 : used in or produced by applied biology
3 : connected by direct genetic relationship rather than by adoption or marriage her biological father

Keep scrolling for more

Other Words from biological

biologically \ ˌbī-​ə-​ˈlä-​ji-​k(ə-​)lē \ adverb

Synonyms & Antonyms for biological

Synonyms

birth, consanguineous, natural

Antonyms

adopted, adoptive, nonbiological

Visit the Thesaurus for More 

Examples of biological in a Sentence

the rights of the biological father in this case

Recent Examples on the Web

The biological sciences building was, until this week, named after Ayala, its benefactor. Katie Langin, Science | AAAS, "Top stories: cycling and climate change, hidden pharma payments, and cursing surgeons," 6 July 2018 Something similar likely happened with the toad, Emily Taylor, a professor of biological sciences at California Polytechnic State University, tells Live Science. Julissa Treviño, Smithsonian, "Why Doesn’t This Toad Have a Face?," 6 Mar. 2018 No obvious physical or biological constraints preclude the construction of such potent biological weapons. R. Daniel Bressler, Vox, "“Designer bugs”: how the next pandemic might come from a lab," 6 Dec. 2018 More research is necessary to fully delve into possible social and biological factors behind gender differences in narcissism and NPD. Nina Bahadur, SELF, "9 Facts to Know About Narcissistic Personality Disorder Before Calling Someone a Narcissist," 8 Nov. 2018 Eric Simanek, head of the organic and biological chemistry department at Texas Christian University, is skeptical of EW’s endeavors, but intrigued nonetheless. Alan Goldfarb, The Verge, "Artificial whiskey is coming, and one company is betting you’ll drink up," 23 Aug. 2018 The program serves up to 38 clients at a time with an average stay of three to four months, after which they are returned to a family resource, either biological or foster care. Annie Gentile, Courant Community, "Dream Cars Fund Kids' Dreams," 26 June 2018 The geographic limitation, for one, raises questions about whether the variations are cultural or biological in origin. Robbie Gonzalez, WIRED, "Twitter Users Are Analytical in the Morning, Angsty at Night," 22 June 2018 Because of these challenges, researchers have long been looking for methods of creating artificial skin grafts, either from biological or synthetic materials. Emily Matchar, Smithsonian, "This Handheld Device Could Print New Skin Onto Burn Victims," 30 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biological.' 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 biological

1818, in the meaning defined at sense 1

Keep scrolling for more

Learn More about biological

Share biological

Statistics for biological

Last Updated

8 Feb 2019

Look-up Popularity

Time Traveler for biological

The first known use of biological was in 1818

See more words from the same year

Keep scrolling for more

More Definitions for biological

biological

adjective

English Language Learners Definition of biological

: of or relating to biology or to life and living things
: related through birth

biological

adjective
bi·​o·​log·​i·​cal | \ ˌbī-ə-ˈlä-ji-kəl\

Kids Definition of biological

1 : of or relating to biology or to life and living things biological activity
2 : related by birth

biological

adjective
variants: also biologic

Medical Definition of biological

1 : of or relating to biology or to life and living processes
2 : used in or produced by applied biology
3 : related by direct genetic relationship rather than by adoption or marriage an adoptee who searched for years for her biological parents

Other Words from biological

biologically \ -​i-​k(ə-​)lē \ adverb

Keep scrolling for more

Comments on biological

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

esteemed in general opinion

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

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!