adj.
1.of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then') fricative n.
1.a continuant consonant produced by breath moving against a narrowing of the vocal tract
Idiom of the Day
fill (someone) in or fill in (someone)
to tell someone the details about something
"I will fill you in later about our plans for the weekend."