Webster's Revised Unabridged Dictionary · 1913

Phthongal

Phthongal , adjective

[Greek {not transcribed} voice.]

Formed into, or characterized by, voice; vocalized; -- said of all the vowels and the semivowels, also of the vocal or sonant consonants g, d, b, l, r, v, z, etc.

Phthongal , noun

A vocalized element or letter.