reactivity

[ ree-ak-tiv-i-tee ]
/ ˌri ækˈtɪv ɪ ti /

noun

the quality or condition of being reactive.
Chemistry. the relative capacity of an atom, molecule, or radical to undergo a chemical reaction with another atom, molecule, or compound.
Physics. a measure of the deviation from the condition at which a nuclear reactor is critical.
Immunology. the ability of an antigen to combine with an antibody.

QUIZZES

IS YOUR VOCABULARY AS STRONG AS A HIGH SCHOOL STUDENT? TRY THIS QUIZ TO SEE!

It may seem like fun and games but this quiz that uses vocab from popular stories will determine how much you know.
Question 1 of 10
disgruntle

Origin of reactivity

First recorded in 1885–90; reactive + -ity

OTHER WORDS FROM reactivity

hy·per·re·ac·tiv·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for reactivity

Medical definitions for reactivity

reactivity
[ rē′ăk-tĭvĭ-tē ]

n.

The property of reacting.
The process of reacting.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.