sorus

noun
so·​rus | \ ˈsȯr-əs How to pronounce sorus (audio) \
plural sori\ ˈsȯr-​ˌī How to pronounce sorus (audio) , -​ˌē \

Definition of sorus

: a cluster of plant reproductive bodies: such as
a : a cluster of sporangia on the underside of a fertile fern frond
b : a mass of spores bursting through the epidermis of the host plant of a parasitic fungus
c : a cluster of gemmae on the thallus of a lichen

Examples of sorus in a Sentence

Recent Examples on the Web Just 4 pounds of sorus can seed 30,000 pounds of kelp for harvest. BostonGlobe.com, 26 June 2021 Fishermen place spore-holding sorus tissue along lengths of rope and submerge them, letting Mother Nature do the rest. BostonGlobe.com, 26 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sorus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sorus

1832, in the meaning defined above

History and Etymology for sorus

New Latin, from Greek sōros heap

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Cite this Entry

“Sorus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sorus. Accessed 26 May. 2022.

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More from Merriam-Webster on sorus

Britannica.com: Encyclopedia article about sorus

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