Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.
  • n. Botany See disseminule.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A natural hydrate of aluminium, sometimes forming stalactites.
  • n. A gemstone consisting of hydrate of aluminium in crystal form.
  • n. seeds and fruit together regarded as a dispersal unit.

from the GNU version of the Collaborative International Dictionary of English

  • n. A hydrate of alumina, often occurring in white lamellar masses with brilliant pearly luster; -- so named on account of its decrepitating when heated before the blowpipe.

from The Century Dictionary and Cyclopedia

  • n. A hydrate of aluminium occurring in crystals and foliated masses, colorless or of a pearly gray. It is infusible, and a small fragment placed in the flame of a candle, or exposed to the flame of the blowpipe, almost instantly decrepitates and is dispersed: hence its name.

Etymologies

From Greek diasporā, dispersion, scattering; see Diaspora.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek διασπείρειυ ("to scatter"), describing its decrepitaton on heating. (Wiktionary)

Examples

  • Based on the morphology of the diaspore, personal observations and the literature, he suggests that about

    1. Tree products in agroecosystems: economic and policy issues.

  • The principal minerals from which aluminum is recovered today are hydrous aluminum oxides, the most prominent of which are bauxite, gibbsite, and diaspore -- the aggregate of all these minerals going commercially under the name of bauxite.

    The Economic Aspect of Geology

  • When I started my PhD project on tree recruitment in French Guiana in 1984, I decided to focus on several key timber species that illustrate a diversity of modes of seed dispersal, from the least to the most efficient in term of distances of dispersal of propagules away from the parent trees, dispersal effectiveness being often dependent on seed size, the smallest diaspore being dispersed the farther.

    Mongabay.com News

  • It consists largely of the minerals gibbsite Al (OH) 3, boehmite γ-AlO (OH), and diaspore α-AlO (OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2.

    WN.com - Business News

  • These minerals are gibbsite (Al (OH) 3), diaspore (AlO (OH)), and boehmite (AlO (OH)).

    Aluminum

  • Why can't you just accept the fact the majority of western Europe (not your diaspore, just the autochtone populations here) don't like the sh** you like to call music?

    esctoday.com | news

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • (n):
    1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.
    2. (Bot.) cf. disseminule

    January 1, 2009