|
Definition of Pyroboric
1. a. Pertaining to derived from, or designating, an acid, H2B4O7 (called also tetraboric acid), which is the acid ingredient of ordinary borax, and is obtained by heating boric acid.
Definition of Pyroboric
1. Adjective. Of or relating to pyroboric acid or its derivatives. ¹
¹ Source: wiktionary.com