counteractantn.
/kaʊntərˈaktənt/ A counteracting agency or force.
ΘΚΠ
the world > action or operation > [noun] > contrary operation or action > that which
antidote1548
orvietan1654
counteracter1805
counter-agent1821
counteraction1822
counteractive1848
counteractant1884
1884 Pall Mall Gaz. 5 Dec. 5/1 [This] is the best possible counteractant of the disloyal utterances.
1891 Harper's Mag. Apr. 752/1 It is a great rectifier of style and counter~actant to mannerism.
This entry has not yet been fully updated (first published 1893; most recently modified version published online March 2018).
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n.1884