What is the Latin word for dentifrice?

The usual Latin words for “dentifrice” are dentifricium, pulvisculus. The right choice depends on the sense; see the distinctions below.

English → Latin

“dentifrice” in Latin

dentifriciumtooth powder, toothpaste pulvisculusfine dust, fine powder; wholly, completely

The English word dentifrice itself goes back to Latin dēns, through dentifricium.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

dentifrice

dentifricium (post-Augustan); from context, pulvisculus only (Apul., Apol., p. 277, 5): cf., mundicina dentium is a vile expression in Apul., Apol., p. 277, 4.

Quick answer

What is the Latin word for dentifrice?: The usual Latin words for “dentifrice” are dentifricium, pulvisculus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.