scum

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

While Embo didn’t have much screen time, he can be glimpsed among the scum and villainy in a handful of episodes including Season 2 Episode 17, Season 5 Episode 14 and Season 6 Episode 5.

From Los Angeles Times ● May 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

Malcolm and Tagoe wouldn’t have been my boys if I weren’t, and Aimee wouldn’t have been my girl if I were scum.

From "They Both Die at the End" by Adam Silvera

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

They are confined to fresh water, and seldom occur in masses of sufficient size to be seen with the naked eye, usually being found associated with pond scums or other filamentous forms.

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

The commonest of these pond scums belong to the genus Spirogyra, and one of these will illustrate the characteristics of the order.

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 metal was too smooth, and scummed with frost.

From A Matter of Proportion by Anne Walker

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 lake opened out before them, scummed with foam and torn into choppy, white-topped waves among which the logs were tossing.

From The Boss of Wind River by A. M. (Arthur Murray) Chisholm

The night's milk is scummed in the morning at daybreak, when the cows are milked again, and the new milk mixed with the old.

From Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson, Volume 2 by Thomas Jefferson Randolph

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

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

"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