subconcave

adj

subconcave

adj

Etymology From sub- + concave.

1

Slightly concave.

the inner surface and margins are red, the rest yellowish with red spots, when uninjected: the outer surface is subconcave and uneven, the inner surface convex and tubercular1866, Richard Owen, Anatomy of Vertebrates:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.