tranquilize

1. (transitive) To calm (a person or animal) or put them to sleep using a tranquilizer dart.Examples: "The escaped lion was finally tracked down, tranquilized, and safely returned to the zoo."; "Miss Ratched shall line us all against the wall, where we’ll face the terrible maw of a muzzle-loading shotgun which she has loaded with Miltowns! Thorazines! Libriums! Stelazines! And with a wave of her sword, blooie! Tranquilize all of us completely out of existence."; "When the public protests, confronted with some obvious evidence of damaging results of pesticide applications, it is fed little tranquilizing pills of half truth."Synonyms: dart#Verb, sedate#Verbtransitive

2. (transitive, now literary) To make (something or someone) tranquil.Examples: "1779, Frances Burney, Evelina, Dublin: Price, Corcoran et al., Volume 2, Letter 14, p. 87, […] with words of sweetest kindness and consolation, he soothed and tranquilised me."; "[…] I feel my heart glow with an enthusiasm which elevates me to heaven, for nothing contributes so much to tranquillize the mind as a steady purpose,—a point on which the soul may fix its intellectual eye."; "This threat, the reader may well suppose, was not very tranquilizing to my feelings."Synonyms: appease, calm, pacifyliterarytransitive

3. (intransitive, obsolete, rare) To become tranquil.Examples: "Seest thou not, that this unseasonable gravity is admitted to quell the palpitations of this unmanageable heart? But still it will go on with its boundings. I’ll try, as I ride in my chariot, to tranquillize."Synonyms: calm down, relaxintransitiveobsoleterare

4. (transitive) To dart (a person or animal) with a sedativeExamples: "The bear should go down several minutes after being tranquilized."; "Moose should only be down about 15 to 20 minutes after being tranquilized."transitive