Dictionary.com

sorus

[ sawr-uhs, sohr- ]
/ ˈsɔr əs, ˈsoʊr- /
Save This Word!

noun, plural so·ri [sawr-ahy, sohr-ahy]. /ˈsɔr aɪ, ˈsoʊr aɪ/.

Botany. one of the clusters of sporangia on the back of the fronds of ferns.
Mycology. a soruslike spore mass of certain fungi and lichens.

QUIZZES

QUIZ YOURSELF ON THE MANY TYPES OF NOUNS

They're everywhere you turn, but can you identify the 10 types of nouns easily? This quiz will test your mettle against singular, plural, concrete, abstract, common, proper, collective, compound, countable, and uncountable nouns!
Question 1 of 7
Shoelaces, rainbow, toothpaste, and haircuts are all what type of noun?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of sorus

1825–35; <New Latin <Greek sōrós heap
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for sorus

British Dictionary definitions for sorus

sorus
/ (ˈsɔːrəs) /

noun plural -ri (-raɪ)

a cluster of sporangia on the undersurface of certain fern leaves
any of various similar spore-producing structures in some lichens and fungi

Word Origin for sorus

C19: via New Latin from Greek sōros a heap
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sorus

sorus
[ sôrəs ]

Plural sori (sôrī)

A cluster of sporangia borne on the underside of a fern frond. A sorus is sometimes covered by an indusium. Also called fruitdot
A reproductive structure consisting of masses of spores, characteristic of certain fungi such as rusts and smuts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK