Luminal
lu·mi·nal
noun
1.
a long-acting barbiturate used as a sedative
Origin
From Latin lumina (“lights”) + English -al.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.