Vitreous rhymes with:
demetrius, dimitrius, dimitrius', illustrious, industrious, aquarius, curious, deleterious, delirious, demetrius, denarius, dimitrius, dimitrius', furious, glorious, gregarious, hilarious, illustrious, imperious, industrious, inglorious, injurious, laborious, lugubrious, marius, meritorious, murias, mysterious, nefarious, notorious, pancreas, penurious, precarious, serious, spurious, stradivarius, tavoulareas, various, vicarious, victorious
Vitreous sounds like:
vitric, voter's, voters, voters', votrax