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n. pl. haus·to·ri·a (hô-stôr′ē-ə)
A specialized structure of a parasitic fungus or plant, used to absorb nutrients and water from the host plant.

[New Latin haustōrium, from Latin haustus, a drawing in, absorption, from past participle of haurīre, to draw up.]

haus·to′ri·al adj.
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.


n, pl -ria (-rɪə)
(Plant Pathology) the organ of a parasitic plant that penetrates the host tissues and absorbs food and water from them
[C19: from New Latin, from Late Latin haustor a water-drawer; see haustellum]
hausˈtorial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(hɔˈstɔr i əm, -ˈstoʊr-)

n., pl. haus•to•ri•a (hɔˈstɔr i ə, -ˈstoʊr-)
1. a projection from the hypha of a fungus into the organic matter from which it absorbs nutrients.
2. the penetrating feeding organ of certain parasites.
[1870–75; < New Latin, = Latin haus-, variant s. of haurīre to scoop up, draw + -tōrium -tory2]
haus•to′ri•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.haustorium - a root-like attachment in parasitic plants that penetrates and obtains food from the host
plant process, enation - a natural projection or outgrowth from a plant body or organ
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Then germilings were treated with 40 [micro]l of DMBQ at 10 and 20[micro]M and subsequently incubated and examined for haustorial initiation as described above.
Haustorial cells arise on the hyphae, basidia with oblique to vertical septa.
Haustorial hemiparasites which insert themselves into the host's vascular system.
christii with a haustorial attachment on a mountain big sagebrush (Artemisia tridentata.
Like several other species of Phoradendron, the haustorial system has a single point of contact with the host (Kuijt, 1969), this causing a hypertrophy of the branches up to 30 cm in diameter.
Mistletoe (Phoradendron) and dodder (Cuscuta), for example, produce haustorial roots, which not only anchor the parasite to its host but also penetrate the host's vascular system.
Data on percentage germination and haustorial initiation were calculated for each disc, transformed to arcsine (Gomez and Gomez, 1984) and subjected to analysis of variance (ANOVA).