Labial (noun)

A speech sound produced by the lips.

Origin:

The term "labial" is derived from the latin word "labium" which means lip. it is used in linguistics, phonetics and orthodontics to describe speech sounds produced by the lips.

Examples:

1. The labial consonants b, f, m, p, and v are produced by the lips.
2. The labial sounds are produced by the lips.
3. The labial pressure is the pressure of the lips against each other.
4. Labial fricatives are speech sounds in which the air is forced through a narrow channel formed by the lips.
5. Labial vowels are speech sounds produced with the lips.