isoetes

noun
iso·​etes | \ īˈsōəˌtēz \

Definition of isoetes

1 capitalized : a large widely distributed genus (coextensive with the family Isoetaceae) of fern allies comprising the aquatic or marsh-growing quillworts that have a short buried lobed stem from which arises a tuft of quilt-shaped leaves bearing sporangia in their axils — see isoetales
2 plural isoetes : any plant of the genus Isoetes : quillwort sense 1

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History and Etymology for isoetes

New Latin, from Latin, houseleek, from Greek, from neuter of isoetēs equal in years, from is- + etos year

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Cite this Entry

“Isoetes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoetes. Accessed 28 Jan. 2021.

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