Definition of Mnium
: a genus of mosses (family Mniaceae) resembling Bryum but larger and with usually horizontal capsules
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Origin and Etymology of mnium
New Latin, from Greek mnion moss, seaweed; akin to Greek mnoos, mnous soft down, mateisai, feminine plural, walking, stepping, Middle Irish men meal, Welsh mathru to trample, Sanskrit carnamna tanner, Lithuanian miniava close turf, minti to step
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