ˈməˌsī noun plural
Usage: capitalized
Etymology: New Latin, from plural of Latin muscus moss — more at moss
: a class of Bryophyta comprising the mosses and being characterized by a well-developed leafy gametophyte that arises by budding from a protonema and bears sex organs among the leaves at its tip and by a sporophyte that develops from the fertilized egg, remains attached to the tip of the gametophyte, and is a naked usually stalked and operculate capsule in which asexual spores are borne — see andreaealis, bryales , sphagnales ; compare eubryales , hepaticae