biological

adjective
bi·​o·​log·​i·​cal | \ ˌbī-ə-ˈlä-ji-kəl How to pronounce biological (audio) \
variants: or less commonly biologic \ ˌbī-​ə-​ˈlä-​jik How to pronounce biologic (audio) \

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 How to pronounce biologically (audio) \ 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 reason may simply be biological, not psychological. Sarah Jio, Woman's Day, "10 Reasons Your Husband Doesn't Want to Have Sex," 21 Feb. 2019 The easy comparison here is height, which is determined by both biological and environmental factors. Cathleen O'grady, Ars Technica, "Why figuring out what’s behind a big gender paradox won’t be easy," 18 Oct. 2018 Doing so would erase the fact that there are very real biological and personal factors that help determine someone's overall mental health. refinery29.com, "The Internet Is Remarkably Torn Over Toby's Parents On This Is Us," 14 Mar. 2018 Although past agreements have helped turn back the Doomsday Clock by banning biological and chemical weapons and stigmatizing nuclear tests, enduring disagreements have resulted in a diplomatic paralysis that intensifies our current perilous moment. Izumi Nakamitsu, Teen Vogue, "International Women’s Day 2018: The Women Who Have Shaped Policies on Nuclear Weapons," 8 Mar. 2018 The mathematician, James Murray, specialized in modeling biological processes. Jo Craven Mcginty, WSJ, "The Math Behind Successful Relationships," 8 Feb. 2019 Well, this desire makes sense from a biological standpoint. Carolyn Twersky, Seventeen, "Why Do Couples Hold Hands?," 4 Jan. 2019 These glasses with the Flower of Life sacred geometric designs on the bottom claim to restructure the water’s molecular shape, returning it back to its natural state, increasing the biological value, and improving flavor. Rachel Marlowe, Vogue, "How to Give the Gift of Wellness, According to Miranda Kerr," 17 Dec. 2018 Bredesen has identified more than three dozen mechanisms that amplify the biological processes that drive the disease. Linda Marsa, Discover Magazine, "A New Treatment for Alzheimer's? It Starts With Lifestyle," 16 Nov. 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

Statistics for biological

Last Updated

5 Apr 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 How to pronounce biologically (audio) \ 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

an enemy or opponent

Get Word of the Day daily email!

Test Your Vocabulary

Name That Thing: Animal Edition

  • alt 5a023732e6f75
  • Name that animal:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

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!