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mermaid weed

American

noun

any of several North American, aquatic plants of the genus Proserpinaca, having pinnately dissected leaves either above or below the water.

Etymology

Origin of mermaid weed

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.