(ˈ)bī, |bī+ adjective
Etymology: International Scientific Vocabulary bi- (I) + concave
: concave on both sides : concavo-concave
biconcave vertebrae
a biconcave lens
— see lens illustration
• bi·concavity |bī+ noun -es
(ˈ)bī, |bī+ adjective
Etymology: International Scientific Vocabulary bi- (I) + concave
: concave on both sides : concavo-concave
biconcave vertebrae
a biconcave lens
— see lens illustration
• bi·concavity |bī+ noun -es
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012