adj.
1.of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then') spirant n.
1.a continuant consonant produced by breath moving against a narrowing of the vocal tract
Idiom of the Day
clean out (someone) or clean (someone) out
to rob someone of almost everything, to steal almost everything from someone
The robber enterd the store at night and cleaned out the owners.