reindeer moss

noun
|Updated on: 27 Jun 2018

Definition of reindeer moss

: a gray, erect, tufted, and much-branched lichen (Cladonia rangiferina) that forms extensive patches in arctic and north-temperate regions, constitutes a large part of the food of caribou, and is sometimes eaten by humans called also reindeer lichen

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First Known Use of reindeer moss

circa 1753

in the meaning defined above

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