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water feather

American

noun

a water milfoil, Myriophyllum aquaticum.
a North American featherfoil, Hottonia inflata.

Etymology

Origin of water feather

An Americanism dating back to 1810–20

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.