Entry 1 sense Webster, 1913 Reciprocornous /(rē̇*sĭp`rō̇*kôr"nŭs)/ · Re·cip·ro·cor·nous · IPA 01 a. Having horns turning backward and then forward, like those of a ram. 1. Having horns turning backward and then forward, like those of a ram.(Zool.) [R.]