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manna lichen

American  

noun

  1. any of several crustose lichens of the genus Lecanora, especially L. esculenta, found in the African and Arabian deserts, used for food by humans and other animals.

Etymology

Origin of manna lichen

First recorded in 1860–65

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.