moss 
/ˈmɑ:s/ noun
plural moss·es /ˈmɑ:s/ noun : a type of green plant that has very small leaves and no flowers and that grows on rocks, bark, or wet ground [noncount] ▪ Moss covered the fallen logs. [count] ▪ ferns and mosses — see also peat moss, spanish moss
— moss·like /ˈmɑ:sˌlaɪk/ adjective
/ˈmɑ:sˌlaɪk/ adjective— mossy /ˈmɑ:si/ adjective, moss·i·er; moss·i·est
▪ a mossy roof [=a roof covered with moss] ▪ mossy rocks/stones
/ˈmɑ:si/ adjective, moss·i·er; moss·i·est ▪ a mossy roof [=a roof covered with moss] ▪ mossy rocks/stones
