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Luminal

[loo-muh-nl]
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Pharmacology, Trademark.
  1. a brand of phenobarbital.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for luminal

Luminal

n.

trade name of phenobarbitone, used as a sedative and hypnotic, coined 1912 in German from Latin lumen "light," related to lucere "to shine" (see light (n.)), + -al (3), "the root here being used, very irregularly, as an equivalent of pheno- [Flood].

adj.

"of or pertaining to a lumen," 1897, with -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper