diaspore

[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, especially one that undergoes dispersal.

Origin:
1795–1805; < Greek diasporá; see Diaspora

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World English Dictionary
diaspore (ˈdaɪəˌspɔː)
 
n
1.  a white, yellowish, or grey mineral consisting of hydrated aluminium oxide in orthorhombic crystalline form, found in bauxite and corundum. Formula: AlO(OH)
2.  any propagative part of a plant, esp one that is easily dispersed, such as a spore
 
[C19: from Greek diaspora a scattering, dispersion; see Diaspora: so named from its dispersion and crackling when highly heated]

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Example sentences
Fire clay comprises mainly diaspore, halloysite, and/or kaolinite.
Included under the general term fire clay are the diaspore, burley, and burley- flint clays.
Included under the general term fire clay are the diaspore, burley, and burley flint clays.
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