\ˈdü also ˈdyü \

Definition of dew 

(Entry 1 of 2)

1 meteorology : moisture condensed upon the surfaces of cool bodies especially at night wet with morning dew

2 : something resembling dew in purity, freshness, or power to refresh … the golden dew of sleep …— William Shakespeare

3 : moisture especially when appearing in minute droplets: such as

a : tears

b : sweat

c botany : droplets of water produced by a plant in transpiration

Definition of DEW (Entry 2 of 2)

distant early warning

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Other Words from dew


dew transitive verb
dewless \-ləs \ adjective

Did You Know?

This is a deposit of water droplets formed at night by the condensation of water vapor from the air onto the surfaces of exposed objects. Dew forms on clear nights, when exposed surfaces lose heat by radiation and are thus usually colder than the air. The cold surface cools the air in its vicinity, and, if the air is humid enough, it may cool below its dew point, the temperature at which water vapor condenses out of the air onto the surface.

Examples of dew in a Sentence


The grass was wet with the morning dew.

Recent Examples on the Web: Noun

Continental-source high pressure brought very dry, low-dew-point air to the region over the weekend. Tom Skilling,, "Clouds to return as heat, humidity levels rise," 8 July 2018 Keep the lens warm If the rocket launch is scheduled in the early morning, dew can form on the lens and fog the image. Michael Stillwell, Popular Mechanics, "How To Photograph a Rocket Launch," 6 July 2018 An influx of warmth and high dew-point air ahead of this disturbance will help fuel storms across the entire area Tuesday and Tuesday evening. Tom Skilling,, "Pleasant Monday belies impending storm threat," 25 June 2018 On the same day, Cato issued a recall of fresh cut watermelon, honey dew melon, cantaloupe and fresh-cut fruit medley products containing one of these melons produced at its Indianapolis facility. Tresa Baldas, Detroit Free Press, "Tainted melons trigger 3 salmonella lawsuits in Midwest," 12 June 2018 Again, bring it inside nightly to avoid evening dew. Margaret Lauterbach, idahostatesman, "Growing and drying herbs in summer is a great way to benefit your culinary world," 8 June 2018 Roth, the kid from Newark, strolling now alongside stone fences, his sneakers wet with dew? Vogue, "A Domesticated Philip Roth? Vogue Profiles the Late Writer with Claire Bloom in 1983," 23 May 2018 Avoid mildew by harvesting on a dry, sunny day after the dew has dried but before the sun is blazing. Therese Ciesinski, Good Housekeeping, "How To Grow Lavender Anywhere," 3 Apr. 2017 Blend 1 minute or until honey dew and juices are smooth. Dan Koday, Seventeen, "Party-Perfect Mocktails," 10 June 2010

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dew.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dew


before the 12th century, in the meaning defined at sense 1

History and Etymology for dew


Middle English, from Old English dēaw; akin to Old High German tou dew, Greek thein to run

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The first known use of dew was before the 12th century

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English Language Learners Definition of dew

: drops of water that form outside at night on grass, trees, etc.


\ˈdü, ˈdyü\

Kids Definition of dew

: moisture that collects on cool surfaces at night

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Comments on dew

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