Meaning of borosilicic acid

bo'ro•si•lic'ic ac'id

Pronunciation: (bôr'ō-si-lis'ik, bōr'-, bôr"-, bōr"-), [key]
— Chem. Chem.
  1. any of several hypothetical acids that form borosilicates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.