faucal

Etymology
.

Adjective

 * 1) Relating to the fauces, or opening of the throat; faucial.

Noun

 * 1)  A sound produced in the fauces.

Usage notes
Both faucal and faucial are used and accepted. Faucial is generally used in medicine; faucal more often in phonetics. Faucal seems to have more etymological validity with respect to both the Latin and English roots. The Latin root is faux. Latin nouns in -ux retain no affix in combination with -alis; the proper Latin construction is faucalis, compare: Latin vocalis/English vocal, Latin ducalis/English ducal.