isidium

noun

isid·​i·​um
īˈsidēəm
plural isidia
-ēə
: an outgrowth from the surface of the thallus in certain lichens that resembles a soredium

Word History

Etymology

New Latin, from Isidium, supposed genus of lichens, irregular from Isis genus of gorgonians + Greek eidos form; from the resemblance of lichens that have isidia to gorgonians

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Cite this Entry

“Isidium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isidium. Accessed 22 Nov. 2024.

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