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rainbow cactus

American

noun

an erect stiff cactus, Echinocereus pectinatus rigidissimus, of Arizona and Mexico, having a cylindrical body, numerous interlocking spines, and pink flowers.

Etymology

Origin of rainbow cactus

First recorded in 1890–95

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.