horse tranquilizer

noun

The drug phencyclidine (PCP).

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Meanings

nounhorse tranquilizer (countable and uncountable, plural horse tranquilizers)

plural horse tranquilizers

  1. countableidiomaticslanguncountableThe drug phencyclidine (PCP).
  2. countableidiomaticslanguncountableThe drug ketamine.
  3. countableuncountableUsed other than figuratively or idiomatically: see horse, tranquilizer: any of various drugs for veterinary sedation of equines or other large animals.

Synonyms & antonyms

Also see
angel dustketaminekjphencyclidinezootie

Origin

The figurative senses are extended from the literal one, reflecting illicit human use of drugs intended for veterinary sedation or metaphorical comparison to such drugs.

Full word history & related roots →
Cite this entry
APA

horse tranquilizer. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/horse%20tranquilizer

MLA

“horse tranquilizer.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/horse%20tranquilizer. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “horse tranquilizer,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/horse%20tranquilizer.

Source: horse tranquilizer on Wiktionary, CC BY-SA 4.0.