Entry 1 sense Webster, 1913 Monostichous /(mō̇*nŏs"tĭ*kŭs)/ · Mo·nos·ti·chous · IPA 01 a. Arranged in a single row on one side of an axis, as the flowers in grasses of the tribe Chloridae. 1. Arranged in a single row on one side of an axis, as the flowers in grasses of the tribe Chloridae.(Bot.)