pond scum


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pond scum

n.
A usually greenish film on the surface of stagnant water, consisting of a mass of freshwater algae.

pond scum

n
(Biology) a greenish layer floating on the surface of stagnant waters, consisting of various freshwater algae

pond′ scum`


n.
a mass of free-floating freshwater algae that forms a green scum on water.
[1885–90]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pond scum - free-floating freshwater green algae
chlorophyte, green algae - algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water
family Zygnemataceae, Zygnemataceae - pond scums: common freshwater algae forming green slimy masses
References in periodicals archive ?
The new study looks at the history of life on Earth, the one inhabited planet we know of, to find times where the planet's atmosphere contained a mixture of gases that are out of equilibrium and could exist only in the presence of living organisms -- anything from pond scum to giant redwoods.
She said Dorothy was "a sweet, kind lady", adding: "This pond scum of a man lost out - he's the fool.
Second full disclosure: even though my dad was named after Depression-era Dodgers shortstop Glenn Wright as well as the fact that both my grandfathers were die-hard Trolley Dodger fans, as a Giants rooter I equate the team with pond scum.
Mitochondria are capsules that speckle the insides of all complex cells from pond scum to people, or so textbooks say.
We joked when the turtle poked its beak through the pond scum, bathtub
We might have evolved to be able to miraculously balance on seven-inch heels, but as far as our emotional development is concerned we're still swimming with the pond scum.
Thus when it comes to anything that involves human relationships, journalists are at the same end of the spectrum where pond scum and dog lice reside.
THIS MONTH'S COLUMN details one of my often-failed attempts to be treated as something better than pond scum.
You're lower than the pond scum, so I'm just gonna say this once," Neeson said in the recording, referring to his character in "Taken.
Now and again, someone quits the team by writing a cancel-my-subscription letter and damning NCR as pond scum, with me in the subaquatic waters below.
Formerly called blue-green algae and often called pond scum, cyanobacteria are one of the best prokaryotic phyla in which to study bioenergetics and stress biology, because of their cosmopolitan occurrence, archaic origin, and relatively simple bacterial architecture with a physiology ancestral to higher plants.
THE ENDLESS QUEST FOR AN alternative to petroleum has dipped a toe in a rather slimy source: pond scum, reports science journalist Neil Savage.