A plant that has only one cotyledon. The corn seed has only one cotyledon.

Flowering plants whose embryo has only one cotyledon. [AV

Plants having parallel veins and straplike or fanlike leaves, fibrous root systems, embryos with a single cotyledon, scattered vascular bundles in the stem, and three or six floral whorls. Ex., grasses, sedges, palms, lilies.

One of the two major types of þowering plants; characterized by having a single cotyledon, þoral organs arranged in threesd or multiples of three, and parallel-veined leaves; include grasses, cattails, lilies, and palm trees. One of the two major groups in the Angiosperms, monocots are characterized by having a single seed leaf (cotyledon), flower parts in 3's or multiples of 3, monoaperturate pollen (although some dicots also have this feature), parallel veins in their leaves, and scattered vascular bundles in their stems. PICTURE

Any of a class or subclass (Liliopsida or Monocotyledoneae) of chiefly herbaceous seedplants having an embryo with a single cotyledon, usually parallel-veined leaves, and floral organs arranged in cycles of three.