Placidyl

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Trade name of ethchlorvynol, a sedative. countable, uncountable

    "His horror of insomnia, compounded with a family history of compulsive worrying, caused him to down three or four Placidyls, Seconals, Quaaludes, or Tuinals almost every night—and often it was a combination of all four."

  2. 2
    a mild sedative-hypnotic drug (trade name Placidyl) wordnet

Synonyms

All synonyms
ethchlorvynol

Example

More examples

"His horror of insomnia, compounded with a family history of compulsive worrying, caused him to down three or four Placidyls, Seconals, Quaaludes, or Tuinals almost every night—and often it was a combination of all four."

Etymology

Marketing name, apparently from placid + -yl.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.