labiodental consonant

The labiodental consonants (輕脣音 "light lip sounds") are derived from the bilabial series.

Labiodental consonants are labial consonants made with the bottom lip and the top teeth.

The labiodental consonants identified by the International Phonetic Alphabet are:

As consonants, these include bilabial and labiodental consonants.

Dentolabial consonants are consonants articulated with the lower teeth against the upper lip, the reverse of labiodental consonants.

Normal articulation during an ordinary lip-whistle is relatively easy though the lips move little causing a constant of labialization and making labial and labiodental consonants (p, b, m, f, etc.) problematical.