Definition of acotyledon in English:

acotyledon

noun

Botany
  • A plant with no distinct seed leaves, especially a fern or moss.

    • ‘Acotyledons are plants not furnished with cotyledons or seed-lobes, such as ferns, mosses and sea-weeds.’
    • ‘One of these determinables is number of cotyledons under which fall the determinates acotyledon, monocotyledon, and dicotyledon.’
    • ‘Jussieu classifies plants on the basis of cotyledons, and divides all plants into acotyledons, monocotyledons, and dicotyledons.’

Origin

Mid 18th century: from modern Latin plural acotyledones (see a-, cotyledon).

Pronunciation:

acotyledon

/əˌkɒtɪˈliːd(ə)n/