■ noun
1》 a small flowerless green plant which grows in low carpets or rounded cushions in damp habitats and reproduces by means of spores. [Class Musci.]
↘used in names of algae, lichens, and other low-growing plants, e.g. reindeer ~ .
2》 Scottish & N. English a peat bog.
■ verb [usu. as adjective ~ed ] cover with ~.
Derivatives
~iness noun
~y adjective ( ~ier , ~iest ).
Origin
OE mos 'bog or ~', of Gmc origin.