'Concavo-concave' definitions:

Definition of 'concavo-concave'

From: WordNet
adjective
Concave on both sides [syn: biconcave, concavo- concave]

Definition of 'Concavo-concave'

From: GCIDE
  • Concavo-concave \Con*ca`vo-con"cave\, a. Concave or hollow on both sides; double concave. [1913 Webster]