oidium

[ oh-id-ee-uhm ]

/ oʊˈɪd i əm /

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noun, plural o·id·i·a

[oh-id-ee-uh]. /oʊˈɪd i ə/. Mycology.

one of the conidia that are borne in chains by certain fungi.

(in certain fungi) a thin-walled spore derived from the fragmentation of a hypha into its component cells.

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Origin of oidium

1855–60; <New Latin <Greek ōi(ón) egg¹ (cognate with Latin ovum;see oo-) + -idium-idium

OTHER WORDS FROM oidium

o·id·i·oid, adjective

Words nearby oidium

ohv, Oi, OIC, -oid, -oidea, oidium, oik, oil, Oil and water don't mix, oil beetle, oilbird

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use oidium in a sentence

The original vines on the estate perished in the late 19th century from oidium and phylloxera, and Klein Constantia shut down.
Drink Like Nelson Mandela: South Africa’s Exciting New Wine|Jordan Salcito|December 14, 2013|DAILY BEAST
Shortly after the flies had some mouldy cream, the Oidium lactis was found in their fæces.
Scientific American Supplement, No. 415, December 15, 1883|Various
In this ripening there is a prompt development of a heavy viscous slime, which consists of Oidium and bacteria.
The Book of Cheese|Charles Thom and Walter Warner Fisk
This occurs very rapidly under the attack of Oidium lactis accompanied by bacteria.
The Book of Cheese|Charles Thom and Walter Warner Fisk

This consists of bacteria of several forms, yeasts, Oidium lactis and accidental species of other molds.
The Book of Cheese|Charles Thom and Walter Warner Fisk
On roses the old Oidium leucoconium is but the conidia of Sphærotheca pannosa, and so of other species.
Fungi: Their Nature and Uses|Mordecai Cubitt Cooke

British Dictionary definitions for oidium

oidium

/ (əʊˈɪdɪəm) /

noun plural -ia (-ɪə)

botany any of various fungal spores produced in the form of a chain by the development of septa in a hypha

Word Origin for oidium

New Latin: from oo- + -idium diminutive suffix

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012