muscoid,a.andn.|ˈmʌskɔɪd| [f. L. musc-us moss: see -oid.] a.adj. Resembling moss; moss-like; b.n. A muscoid plant. 1841Webster, Muscoid, a. in botany, moss-like; resembling moss. Muscoid, n. A moss-like plant.1879in Stormonth Man.Sci. Terms.[the adj.].