diaspore


Also found in: Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.

di·a·spore

 (dī′ə-spôr′)
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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

diaspore

(ˈdaɪəˌspɔː)
n
1. (Minerals) a white, yellowish, or grey mineral consisting of hydrated aluminium oxide in orthorhombic crystalline form, found in bauxite and corundum. Formula: AlO(OH)
2. (Botany) 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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

di•a•spore

(ˈdaɪ əˌspɔr, -ˌspoʊr)

n.
a hydrous oxide of aluminum, AlO(OH), occurring as a mineral in white to greenish crystals or in foliated masses.
[< French (1801); see Diaspora]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
The structure known as seed by the agronomists and used for the sexual production of yellow mombin, is a diaspore of the nuculanic type (CAVALCANTE et al., 2009; CARVALHO; NAKAGAWA, 2012) from the botanical point of view.
Pregerminative treatments of yellow mombin (Spondias mombin L.) seeds/Tratamentos pre-germinativos em sementes de caja (Spondias mombin L.)
Bauxite is a mixture of minerals such as gibbsite, boehmite and diaspore, iron oxides such as goethite and hematite, clay mineral kaolinite and some amounts of anatase.
Global Market for Bauxite Mining Market to Register Impressive Growth During 2020
In this sense, one of the most important structural components of wetland ecosystems is the diaspore bank, defined as an aggregation of non germinated seeds, potentially capable of replacing adult plants (Bakker, 1989).
Diaspore bank of aquatic macrophytes maintaining species diversity in a Neotropical pond/Banco de diasporos de macrofitas aquaticas para a manutencao da diversidade das especies em uma lagoa neotropical
Lower Miocene leaf, palynomorph, and diaspore assemblages from the base of the lignite-bearing sequence in the opencast mine Obcrdorf, N Voitsberg (Styria, Austria) as an indication of <<Youngcr Mastixioid>> vegetation.
A commented synopsis of the pre-pleistocene fossil record of Carex (Cyperaceae)
John Bradshaw, Coast-to-Coast Rare Stones International, Nashua, New Hampshire, USA, for 21 bags containing part-cut crystals of: apatite (Canada and Mexico), cassiterite (Namibia), celestine (Kansas, USA), cerrusite (Namibia), crocoite (Tasmania, Australia), diaspore (Turkey), oligoclase (Kenya), pollucite (Conneticut, USA), scheelite (Pakistan and Arizona, USA), smithsonite (Namibia), sphalerite (Spain), tourmaline (Maine, USA, and Afghanistan), tugtupite (Greenland), willemite/leucophoenicite (New Jersey, USA) and zincite on calcite (New Jersey); and also for 95 faceted mixed-shape tourmalines, mostly pink, green and blue.
Gifts to the association
X-ray diffraction (XRD) analyses show that the Zan laterites consist of kaolinite, diaspore, hematite, goethite, boehmite, anatase, siderite, rutile, and quartz.
Geochemical characteristics of a laterite: the Jurassic Zan deposit, Iran
The main minerals of this group are: Brucite, Geothite, Diaspore, Bauxite, Lepidocrocite, Manganite, Groutite, Stainierite and Chalcopanite that this project discusses the diaspore minerals and processing of them from the diaspore minerals.
Desilication and flotation techniques for separating them from the bauxite
Previous studies showed that diaspore mass and shape differed significantly among phylogenetic groups and dispersal syndromes in this desert [31].
Seed dispersal and germination traits of 70 plant species inhabiting the Gurbantunggut Desert in northwest China
the Keystone Trappe Rock quarry at Cornog (exquisite small specimens of Alpine-type cleft minerals), Brinton's quarry at Darlington's Corners (the world's best large clinochlore crystals), the Poorhouse quarry, West Bradford Township (excellent microcline), Corundum Hill, Newlin Township (good corundum and superb diaspore crystals), the fields around Parkesburg where line rutile crystals may still be found loose in the soil.
The mines and minerals of Chester County, Pennsylvania
Diaspore morphology and seed dispersal in several wind-dispersed Asteraceae.
Biologia e ecofisiologia de buva (Conyza bonariensis e Conyza canadensis)
Fruiting periodicity depends principally on flowering, but it is also influenced by environmental conditions appropriate for fruit development, diaspore dispersal, and seedling establishment (Rathcke and Lacey, 1985; Ibarra-Manriquez et al., 1991; van Schaik et al., 1993).
Plant reproductive phenology in a temperate forest of the monarch butterfly biosphere reserve, Mexico/Fenologia reproductiva de las plantas de un bosque templado de la reserva de la biosfera mariposa monarca, Mexico/Fenologia reprodutiva das plantas de um bosque temperado da reserva da Biosfera mariposa monarca, Mexico

Dictionary browser ?
Full browser ?