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

Other Words from biological Synonyms & Antonyms More Example Sentences Learn More about biological

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Synonyms & Antonyms for biological

Synonyms

birth, consanguineous, natural

Antonyms

adopted, adoptive, nonbiological

Examples of biological in a Sentence

the rights of the biological father in this case

Recent Examples on the Web

Sierra was adopted by the Harts with her biological older brothers, Jeremiah and Devonte. — OregonLive.com, "Hart children's tiny bodies telegraphed warning that went unheeded by Oregon officials," 5 May 2018 The anonymous tipster said Hannah and her biological brother, Markis, bore the brunt of Jennifer Hart's discipline, but the girl made no mention of previous abuse to the Oregon social worker. — Eliott C. Mclaughlin, CNN, "Oregon had Minnesota child abuse report before investigating Hart family," 25 Apr. 2018 He is survived by a young daughter and the biological brothers and sisters that he'd never met. — Deanna Boyd, star-telegram, "Teen girl who hatched plan for home invasion that left young father dead gets 20 years," 26 Feb. 2018 Cruz and her husband, who died of a heart attack several years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island in New York to Broward County. — Christal Hayes, USA TODAY, "Florida high school shooting suspect will plead guilty if death penalty is not an option," 16 Feb. 2018 Cruz and her husband, who died of a heart attack several years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island in New York to Broward County. — CBS News, "Florida school shooting suspect charged with 17 counts of premeditated murder," 15 Feb. 2018 Cruz and her husband, who died of a heart attack several years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island in New York to Broward County. — Terrry Spencer And Kelli Kennedy, Cincinnati.com, "School shooting suspect belonged to white nationalist group, leader says," 15 Feb. 2018 Cruz and her husband, who died of a heart attack several years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island in New York to Broward County. — Time, "Florida School Shooting Suspect Charged With 17 Counts of Premeditated Murder," 15 Feb. 2018 Lynda and her husband, Roger, who died many years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island to Broward County. — Stephen Hobbs, Sun-Sentinel.com, "Nikolas Cruz: Troubled suspect had been expelled from Marjory Stoneman Douglas High School," 14 Feb. 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.