any free-floating freshwater alga that forms a green scum on water.
CAN YOU GUESS THESE WORDS FROM AROUND THE US?
American English is not always as it appears to be ... get to know regional words in this quiz!
Question 1 of 10
A bet is synonymous with a wager, but what does it mean in New York?
Origin of pond scum
First recorded in 1885–90
Words nearby pond scum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for pond scum
a greenish layer floating on the surface of stagnant waters, consisting of various freshwater algae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012