plural sori
ˈsȯr-ˌī 
-ˌē
: 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
Last fall, divers couldn’t find any sorus tissue in the usual spots.
—
Carol Leonetti Dannhauser, Hartford Courant, 27 May 2022
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
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Carol Leonetti Dannhauser, Hartford Courant, 27 May 2022
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
Cite this Entry
“Sorus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sorus. Accessed 4 Jul. 2025.
Copy CitationKids Definition
sorus
noun
so·rus
ˈsōr-əs
ˈsȯr-
plural sori
ˈsō(ə)r-ˌī
ˈsȯ(ə)r-,
-ˌē
: any of the dots on the underside of a fertile fern frond consisting of a cluster of spores
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