Originally: a seed or fruit having an appendage rich in oil or protein which makes it attractive to ants, so facilitating its dispersal (now rare ). In later use chiefly: a plant bearing such seeds.
Origin
1920s; earliest use found in Charles Kay Ogden (1889–1957), psychologist. From Italian mirmecocore from mirmeco- + -core. Compare German Myrmekochore (R. Sernander 1906).