This shows grade level based on the word's complexity.
bioassay
[ noun bahy-oh-uh-sey, -as-ey; verb bahy-oh-uh-sey ]
/ noun ˌbaɪ oʊ əˈseɪ, -ˈæs eɪ; verb ˌbaɪ oʊ əˈseɪ /
Save This Word!
This shows grade level based on the word's complexity.
noun
determination of the biological activity or potency of a substance, as a vitamin or hormone, by testing its effect on the growth of an organism.
verb (used with object), bi·o·as·sayed, bi·o·as·say·ing.
to subject to a bioassay.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachImprove Your Writing
Origin of bioassay
First recorded in 1910–15; bio(logical) + assay
Words nearby bioassay
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for bioassay
bioassay
noun (ˌbaɪəʊəˈseɪ, -ˈæseɪ)
a method of determining the concentration, activity, or effect of a change to substance by testing its effect on a living organism and comparing this with the activity of an agreed standard
verb (ˌbaɪəʊəˈseɪ)
(tr) to subject to a bioassay
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
Medical definitions for bioassay
bioassay
[ bī′ō-ăs′ā′, -ă-sā′ ]
n.
Determination of the strength or biological activity of a substance, such as a drug or hormone, by comparing its effects with those of a standard preparation on a test organism.
A test used to determine such strength or activity.
v.
To cause to undergo a bioassay.biologic assay
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for bioassay
bioassay
[ bī′ō-ăs′ā′, -ă-sā′ ]
Determination of the relative purity of a substance, such as a drug or hormone, by comparing its effects with those of a standard preparation on a culture of living cells or a test organism.
A test used to determine such purity.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.