labiodental consonant
Technical term in phonetics for a consonant articulated with the lower lip and upper teeth, such as [f] or [v].
The English 'f' is classified as a labiodental consonant.
Compound of 唇 (しん, 'lip'), 歯 (し, 'tooth'), and 音 (おん, 'sound'), reflecting the articulatory description.