[ bahy-oh-ak-tiv-i-tee ]
/ ˌbaɪ oʊ ækˈtɪv ɪ ti /


any effect on, interaction with, or response from living tissue.

Origin of bioactivity

First recorded in 1970–75; bio- + activity

Related forms

bi·o·ac·tive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for bioactive


/ (ˌbaɪəʊˈæktɪv) /


(of a substance) having or producing an effect on living tissue

Derived Forms

bioactivity, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for bioactive


[ bī′ō-ăk-tĭvĭ-tē ]


The effect of a given agent, such as a vaccine, upon a living organism or on living tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for bioactive


[ bī′ō-ăktĭv ]

Relating to a substance that has an effect on living tissue.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.