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moss

noun [C or U]
 
 
/mɒs/ US  /mɑːs/

Definition

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/lawnTypes of plant
(Definition of moss noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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