plural noun

: an order of plants that is assigned to the class Lycopodineae or occasionally to the class Filicineae, is known to have existed since the Cenozoic, and comprises Isoetes and possibly various extinct genera

Word History


New Latin, from Isoetes + -ales

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Dictionary Entries Near Isoetales

Cite this Entry

“Isoetales.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

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