Dictionary.com

mildew

[ mil-doo, -dyoo ]
/ ˈmɪlˌdu, -ˌdyu /
Save This Word!
See synonyms for: mildew / mildewed / mildewing / mildewy on Thesaurus.com

noun

Plant Pathology. a disease of plants, characterized by a cottony, usually whitish coating on the surface of affected parts, caused by any of various fungi.
any of these fungi.Compare downy mildew, powdery mildew.
any of similar coatings or discolorations, caused by fungi, as that which appears on fabrics, paper, leather, etc., when exposed to moisture.

verb (used with or without object)

to affect or become affected with mildew.

QUIZZES

QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of mildew

before 1000; Middle English: honeydew, mildew; Old English mildēaw, equivalent to mil- honey (cognate with Gothic milith, akin to Latin mel,Greek méli) + dēawdew

OTHER WORDS FROM mildew

mildewy, adjectiveun·mil·dewed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for mildew

British Dictionary definitions for mildew

mildew
/ (ˈmɪlˌdjuː) /

noun

any of various diseases of plants that affect mainly the leaves and are caused by parasitic fungiSee also downy mildew, powdery mildew
any fungus causing this kind of disease
another name for mould 2

verb

to affect or become affected with mildew

Derived forms of mildew

mildewy, adjective

Word Origin for mildew

Old English mildēaw, from mil- honey (compare Latin mel, Greek mēli) + dēaw dew
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

Scientific definitions for mildew

mildew
[ mĭldōō′ ]

Any of various fungi or oomycete organisms that form a white or grayish coating on surfaces, such as plant leaves, cloth, or leather, especially under damp, warm conditions. Powdery mildews are important plant diseases usually caused by ascomycete fungi, while downy mildews, including a serious disease of grapevines, are caused by oomycetes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK