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diaspore

 - 3 dictionary results

di⋅a⋅spore

[dahy-uh-spawr, -spohr]
–noun
1. a mineral, aluminum oxyhydroxide, AlO(OH), occurring in crystals, or more usually in lamellar or scaly masses: a principal constituent of bauxite and an important source of aluminum.
2. Botany. a disseminule, esp. one that undergoes dispersal.

Origin:
1795–1805; < Gk diasporá; see diaspora
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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di·a·spore   (dī'ə-spôr', -spōr')   
n.  
  1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.

  2. Botany See disseminule.


[From Greek diasporā, dispersion, scattering; see Diaspora.]
dis·sem·i·nule   (dĭ-sěm'ə-nyōōl')   
n.  A reproductive plant part, such as a seed, fruit, or spore, that is modified for dispersal. Also called diaspore.

[dissemin(ate) + -ule.]
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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