soredium

noun
so·​re·​di·​um | \ səˈrēdēəm \
plural soredia\ -​dēə \

Definition of soredium

: one of the vegetative gemmae on the surface of the thallus of a lichen consisting of a tuft of hyphae investing a few algal cells or gonidia

called also brood bud, hologonidium

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History and Etymology for soredium

New Latin, irregular from Greek sōros heap + New Latin -idium; akin to Latin tumēre to swell

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“Soredium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/soredium. Accessed 16 Apr. 2021.

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