Definition of dew
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
dewlessplay \-ləs\ adjective
Examples of dew in a Sentence
The grass was wet with the morning dew.
Recent Examples of dew from the Web
The computation is extremely complicated and calculators have been developed using inputs of temperature and relative humidity or dew point.
The air temperature combined with dew points in the 70s will send the heat index up to 105 degrees or higher, which means heat advisories could be possible for parts of the state, according to the weather service.
They're formed when ice crystals floating in the water and freeze to the ice surface in the same way frost or dew forms on foggy mornings.
Humidity levels are moderate as dew points hover within a few degrees of 60.
Night crawlers or dew worms, for instance, normally surface from their burrows in the ground at night to mate.
The humidity in Boise hit a near high as well on Monday, peaking at a dew point of 67 degrees Fahrenheit, which the NWS reported as the second-highest in the last 100 years.
The humidity is very uncomfortable today, with dew points up near 70 and actual temperatures into the 80s this afternoon.
On the south side of the line, dew points are low and so is thunderstorm potential, Cooper said.
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.
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.
Origin and Etymology of dew
Middle English, from Old English dēaw; akin to Old High German tou dew, Greek thein to run
First Known Use: before 12th centurySee Words from the same year
Definition of DEW
distant early warning
DEW Defined for English Language Learners
Definition of dew for English Language Learners
: drops of water that form outside at night on grass, trees, etc.
DEW Defined for Kids
Definition of dew for Students
: moisture that collects on cool surfaces at night
Seen and Heard
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