— beryline /ber"euh lin, -luyn'/ , adj.
/ber"euhl/ , n.
a mineral, beryllium aluminum silicate, Be 3 Al 2 Si 6 O 18 , usually green, but also blue, rose, white, and golden, and both opaque and transparent, the latter variety including the gems emerald and aquamarine: the principal ore of beryllium.
[ 1275-1325; ME beril ( berillus, L beryllus béryllos ]