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indusia

 - 4 dictionary results

in⋅du⋅si⋅um

  [in-doo-zee-uhm, -zhee-uhm, -dyoo-]
Use indusia in a Sentence
–noun, plural -si⋅a  [-zee-uh, -zhee-uh] .
1. Botany, Mycology. any of several structures having a netlike or skirtlike shape, as the membranous overgrowth covering the sori in ferns.
2. Anatomy, Zoology.
a. an enveloping layer or membrane.
b. a thin layer of gray matter on the corpus callosum.
Origin:
1700–10; < NL; L: kind of tunic, perh. < Gk éndys(is) dressing, dress (endý(ein) to put on + -sis -sis ) + L -ium, for Gk -ion n. suffix

Related forms:
in⋅du⋅si⋅al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To indusia
in·du·si·um   (ĭn-dōō'zē-əm, -zhē-, -dyōō'-)   
n.   pl. in·du·si·a (-zē-ə, -zhē-ə)
An enclosing membrane, as that covering the sorus of a fern.

[Latin, tunic, perhaps alteration of Greek endusis, dress, from enduein, to sink into, put on : en-, in; see en-2 + duein, to sink.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: in·du·si·um
Pronunciation: in-'d(y)ü-z(h)E-&m
Function: noun
Inflected Form: plural in·du·sia /-z(h)E-&/
: a membrane serving as a covering; especially : INDUSIUM GRISEUM
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
indusium   (ĭn-d'zē-əm, -zhē-)  Pronunciation Key 
Plural indusia

  1. A thin membrane covering the sorus of a fern. The indusium often shrivels away when spores are ready to be dispersed. Also called fruitcover.

  2. A cuplike structure fringed with hairs and located at the top of the style in flowers of the family Goodeniaceae (which includes the garden flowers lobelia and scaevola). Pollen is deposited into the indusium by the anthers of the same flower and, as the style grows, carried up for dispersal by pollinating insects.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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