Defn: Bowed in the form of an arch; — called also arched.
CONCAVENESS
Con"cave*ness, n.
Defn: Hollowness; concavity.
CONCAVITY Con*cav"i*ty, n.; pl. Concavities. Etym: [L. concavitas: cf. F. concavité. See Concave.]
Defn: A concave surface, or the space bounded by it; the state of being concave.
CONCAVO-CONCAVE
Con*ca`vo-con"cave, a.
Defn: Concave or hollow on both sides; double concave.
CONCAVO-CONVEX
Con*ca`vo-con"vex, a.
1. Concave on one side and convex on the other, as an eggshell or a crescent.
2. (Optics)