monocotyledon

mono- +‎ cotyledon

• IPA^(key): /ˌmɒnəˌkɒtɪˈliːdən/

monocotyledon (plural monocotyledons)

1. (botany) Any plant whose seedlings typically have one cotyledon (seed leaf) (in contrast to the two cotyledons typical of dicots), thereby belonging to the taxonomic monocots, formerly variously known as Monocotyledones, Monocotyledonae, or Liliopsida, a class in the angiosperms (Angiospermae), the flowering plants.
   • 2011 November 18, Lauri Kaila, Elachistine Moths of Australia: (Lepidoptera: Gelechioidea: Elachistidae) (Animal & Veterinary Science)‎:

     Elachistine moths are the world’s most species-rich group of Lepidoptera that specialize on monocotyledon plants, especially grasses and sedges.

• Outside definitions or strict taxonomic usage, monocot is the preferred form.

• (plant with single seed leaf): monocot, liliopsid

• (plant with single seed leaf): grass, lily, orchid, palm

• dicotyledon
• monocots