a very hard, lustrous, hexagonal mineral, BeAlSiO, that is an ore of beryllium; beryllium aluminum silicate: emerald and aquamarine are two gem varieties of beryl
noun
a feminine name
See beryl in American Heritage Dictionary 4
(bĕrˈəl)
noun
A transparent to translucent glassy mineral, essentially aluminum beryllium silicate, Be3Al2Si6O18, occurring in hexagonal prisms and constituting the chief source of beryllium. Transparent varieties in white, green, blue, yellow, or pink are valued as gems.