— acetabular
— biconcave
— boat-shaped
— bowl-shaped
— bursiform
— concavo-concave
— concavo-convex
— cotyloid
— cotyloidal
— cuplike
— cupular
— cupulate
— dish-shaped
— dished
— intrusive
— patelliform
— planoconcave
— pouch-shaped
— pouchlike
— recessed
— saclike
— saucer-shaped
— umbilicate
— urn-shaped