dilation or expansion of the stomach; gastrectasia

a medical instrument used to stretch or expand a tube, opening, or part of the body; expander

(military) Expanding on the results of a successful attack to destroy the enemy's ability to counterattack or defend, leading to their decisive defeat.

the process in geology where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge; it is a key mechanism for continental drift and plate tectonics

the geological theory that oceanic crust forms along submarine mountain ridges and then spreads out laterally

the act of increasing one's own power or importance; ego extension

the policy of expanding a nation's territory or sphere of influence, often through military aggression or dominance