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Definitions

scum

[skuhm] / skʌm /
NOUN
superficial impurities, dirt
Synonyms
Antonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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The researchers found that both microalgal scum and macroalgal mats increased globally between 2003 and 2022.

From Science Daily Aug. 3, 2026

But not long after the job was complete, the paint began to visibly peel, and the gleaming waters promptly refilled with green pond scum.

From Barron's Jun. 21, 2026

“I went through four years of hell by this scum that we had to deal with,” Trump said.

From Salon Feb. 6, 2025

The first is a “caution” advisory, which indicates visitors can swim but should stay away from algae and scum in the water.

From Los Angeles Times Aug. 22, 2024

They used towels to clean off the scum.

From "The Things They Carried" by Tim O'Brien

When this occurs, blue-green algae can form blooms that discolour the water, or produce floating mats or scums on the water's surface.

From BBC Sep. 9, 2025

When this occurs, the algae can form blooms that discolour the water or produce floating mats or scums on the water’s surface.

From BBC Sep. 13, 2024

“You’re in the business of representing scums and trying to make as much money as long as there’s this lapse in the law.”

From Time Aug. 6, 2014

Mixing of filter press scums with diffusion juices is said to offer special advantages for the preliminary purification.

From Scientific American Supplement, No. 832, December 12, 1891 by Various

There are various genera of the pond scums, differing in the form of the chloroplasts and also in the position of the spores.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Douglas Houghton Campbell

A thick mist scummed the windshields as the 39-car motorcade rolled eastward under the grey sky toward Andau, a scant kilometer from the border.

From Time Magazine Archive

The pot must be well scummed before the herbs are put in.

From The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Adapted to the Use of Private Families by Mary Eaton

The sea water overside and around the Pole Star was scummed with a film of mush ice.

From The Ice Pilot by Henry Leverage

Clarifiers reach the boiling point much quicker, and cannot easily be scummed.

From The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. by P. L. Simmonds

On the side table was her after-dinner cup, still full of coffee ... black, scummed with oil droplets, stone-cold.

From Special Delivery by Damon Francis Knight

The mission stories often guide you through a level’s most unique assassinations, which is a nice gift to players who don’t like engaging in the aggressive, save scumming and trial-and-error obsessiveness those never-be-seen challenges require.

From The Verge Jan. 27, 2021

The next day boil it gently, scumming it all the while till no more scum riseth; and if you will clarifie the Liquor with a few beaten whites of Eggs, it will be the clearer.

From The Closet of Sir Kenelm Digby Knight Opened by Anne MacDonell

"There is a brain that will endure but one scumming."

From The Works of Charles and Mary Lamb — Volume 6 Letters 1821-1842 by Mary Lamb

Boil all these together, till the scum be boiled in, not scumming it.

From The Closet of Sir Kenelm Digby Knight Opened by Anne MacDonell

To every pint of juice, add two pounds of powdered loaf-sugar, boiling and scumming it in the same manner as for any other jam or jelly.

From The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Adapted to the Use of Private Families by Mary Eaton




Vocabulary lists containing scum


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