subconcavities

Example:The map showed numerous depressions on the moon's surface, indicating possible subconcavities.

Definition:A sunken or lowered area; a hollow, a dip or reduce in level or amount.

Example:The study of the rock formations focused on indentations and subconcavities to understand their geological history.

Definition:A depression, a line or curve in a surface forming an irregularity.

Example:The material’s surface showed signs of waviness, including subtle subconcavities and convexities.

Definition:A surface not completely smooth or even, with small raised or lowered areas.