reactivity

[ ree-ak-tiv-i-tee ]

/ ˌri ækˈtɪv ɪ ti /

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.

Origin of reactivity

First recorded in 1885–90; reactive + -ity

hy·per·re·ac·tiv·i·ty, noun

That reactivity paradoxically is what makes its sudden coming and going mysterious.

Methane on Mars: Life or Just Gas? |Matthew R. Francis |December 17, 2014 |DAILY BEAST
The effects of formolization on the antigenicity and reactivity of proteins are discussed later.

Myology and Serology of the Avian Family Fringillidae |William B. Stallcup
More than two series, however, resulted in little or no improvement of the reactivity of the antiserum.

Myology and Serology of the Avian Family Fringillidae |William B. Stallcup
That it modifies the functions or reactivity of the ultimate constituent groups we have seen from the study of the esters.

Researches on Cellulose |C. F. Cross

Graphs of precipitin reactions illustrating effects of formalin on antigenicity and reactivity of the extracts.

Myology and Serology of the Avian Family Fringillidae |William B. Stallcup

reactivity

[ rē′ăk-tĭv′ĭ-tē ]

The property of reacting.

The process of reacting.