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water arum

American  

noun

  1. an aquatic arum plant, Calla palustris, of the North Temperate Zone, having heart-shaped leaves, tiny green flowers, and red berries.

Etymology

Origin of water arum

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.