WordReference Random House Unabridged Dictionary of American English © 2025
bal•las
(bal′əs),USA pronunciation n. (used with a sing. v.) [Mineral.]
- Mineralogya spherical aggregate of small diamond crystals used for drilling and for various industrial purposes.
- apparently variant of balas in phrase balas ruby spinel ruby, balas being taken to mean "spinel''
'ballas' also found in these entries (note: many are not synonyms or translations):