different between monocotyledon vs cotyledon

English

Etymology

mono- +? cotyledon

Pronunciation

• IPA^(key): /?m?n??k?t??li?d?n/

Noun

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.

Usage notes

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

Synonyms

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

Hyponyms

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

Translations

See also

• dicotyledon
• monocots

English

Etymology

From Latin cotyl?d?n, from Ancient Greek ????????? (kotul?d?n, “cup-shaped cavity”), from ?????? (kotúl?, “cup”).

Pronunciation

• (UK) IPA^(key): /k?t??li?dn?/
• (US) IPA^(key): /?k?t?l?i?dn?/

Noun

cotyledon (plural cotyledons)

1. (physiology) Each of the patches of vili on the foetal chorion in the placenta of ruminants and some other mammals.
   • 1997, Roy Porter, The Greatest Benefit to Mankind, Folio Society 2016, p. 72:

     Forced to apply animal findings to humans, his human womb also had cotyledons like a dog's.

2. (botany) The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.

Synonyms

• seed leaf

Derived terms

Translations