sorus

[ sawr-uhs, sohr- ]

/ ˈsɔr əs, ˈsoʊr- /

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.

Origin of sorus

1825–35; <New Latin <Greek sōrós heap

Words nearby sorus

sortilege, sorting, sorting tracks, sortition, sort out, sorus, SOS, Sosa, sosatie, Soseki, Sosnowiec

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for sorus

Commonly the spore-cases occupy only detached spots or lines, each of which is called a Sorus, or in English merely a Fruit-dot.
The Elements of Botany|Asa Gray
Indusium hood-shaped, fixed centrally behind the sorus and arching over it, soon withering, often illusive.
The Fern Lover's Companion|George Henry Tilton
The indusium arises from a vein to which the sorus is attached.
How to Know the Ferns|S. Leonard Bastin
In this case the sorus is always near to the margin of the leaf, and the indusium or covering is cup-shaped.
How to Know the Ferns|S. Leonard Bastin

Indusium minute, concealed beneath the sorus, divided into a few beaded hairs.
The Fern Lover's Companion|George Henry Tilton

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

[ sôr′əs ]

Plural sori (sôr′ī)

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.

单词	sorus
释义	sorus [ sawr-uhs, sohr- ] / ˈsɔr əs, ˈsoʊr- / 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. Origin of sorus 1825–35; <New Latin <Greek sōrós heap Words nearby sorus sortilege, sorting, sorting tracks, sortition, sort out, sorus, SOS, Sosa, sosatie, Soseki, Sosnowiec Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for sorus Commonly the spore-cases occupy only detached spots or lines, each of which is called a Sorus, or in English merely a Fruit-dot. The Elements of Botany\|Asa Gray Indusium hood-shaped, fixed centrally behind the sorus and arching over it, soon withering, often illusive. The Fern Lover's Companion\|George Henry Tilton The indusium arises from a vein to which the sorus is attached. How to Know the Ferns\|S. Leonard Bastin In this case the sorus is always near to the margin of the leaf, and the indusium or covering is cup-shaped. How to Know the Ferns\|S. Leonard Bastin Indusium minute, concealed beneath the sorus, divided into a few beaded hairs. The Fern Lover's Companion\|George Henry Tilton 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 [ sôr′əs ] Plural sori (sôr′ī) 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.
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