a line drawn (on a map) in a maritime area which marks the maritime boundary between two countries.

plural of median line

(anatomy) Part of the inferior boundary for the hypothalamus in the human brain.

plural of median eminence

(US) A traffic island between opposing lanes of a road

Synonym of intermediate egret

plural of median strip

plural of median plane

(demography) The age that divides a population (of a country etc.) into two numerically equivalent groups.

(anatomy) A groove along the anterior midline of the spinal cord that incompletely divides it into symmetrical halves.