jpdb beta

unevenness; bumpiness; roughness; imbalance; inequality; unevenness

unevenness; roughness; ruggedness; inequality; imbalance; unevenness

concave; hollow; sunken

hollow; low ground; basin; pit; dip; depression

concavity

concave mirror

concavity; concave

concave lens

concavity; hollow; depression

concavity

intaglio printing

intaglio (printing)

concave angle; (a) re-entrant

concave polygon

plano-concave lens

cavernous eyes

concave glasses

embossed paper

costal fovea