[mono.cot.y.le.don] n [ultim. fr. NL mon- + cotyledon cotyledon] (ca. 1727): any of a class or subclass (Liliopsida or Monocotyledoneae) of chiefly herbaceous seedplants having an embryo with a single cotyledon, usu. parallel-veined leaves, and floral organs arranged in cycles of three--compare dicotyledon -- mono.cot.y.le.don.ous adj
MONOCOTYLEDON
Meaning of MONOCOTYLEDON in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012