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English definition of “moss”

moss

noun [C or U]     /mɒs/ US  /mɑːs/
a very small , green or yellow plant that grows especially in wet earth or on rocks , walls , and tree trunks : The rocks near the river were covered with moss.Types of plant mossy     /ˈmɒs.i/ US  /ˈmɑː.si/ adjective a mossy tree / rock / lawn Types of plant
(Definition of moss noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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