biological

adjective
variants: or less commonly biologic

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

biologically

play \-ji-k(ə-)lē\ adverb

Examples of biological in a Sentence

  1. the rights of the biological father in this case

Recent Examples of biological from the Web

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.

First Known Use of biological

1818

biological Synonyms

Synonyms
natural (also biologic), birth, consanguineous
Antonyms
adopted, adoptive, nonbiological
Related Words
legitimate
Near Antonyms
illegitimate


BIOLOGICAL Defined for English Language Learners

biological

adjective

Definition of biological for English Language Learners

  • : of or relating to biology or to life and living things

  • : related through birth


BIOLOGICAL Defined for Kids

biological

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

Definition of biological for Students

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

Medical Dictionary

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

biologically

play \-i-k(ə-)lē\ adverb


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