Semivitrified :: Semivitrified (a.) Half or imperfectly vitrified; partially converted into glass.
Semivocal :: Semivocal (a.) Of or pertaining to a semivowel; half cocal; imperfectly sounding.
Semivowel :: Semivowel (n.) A sound intermediate between a vowel and a consonant, or partaking of the nature of both, as in the English w and y..
Semivowel :: Semivowel (n.) The sign or letter representing such a sound.