luminal

Noun

a long-acting barbiturate used as a sedative
The drug phenobarbital.

Adj

of or pertaining to the lumen
of or pertaining to the nature of light
light-speed; having the speed of light (usually in the void)

Origin / Etymology

From Latin lumina (“lights”) + -al.

Synonyms

phenobarbital, phenobarbitone, purple heart, sodium thiopental, lumic

Antonyms

basalolateral

Scrabble Score: 9

luminal: valid Scrabble (US) TWL Word
luminal: valid Scrabble Word in Merriam-Webster MW Dictionary
luminal: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 14

luminal: valid Words With Friends Word