As adjectives the difference between mucoid and muscoid
is that mucoid is of or pertaining to mucus; mucoidal while muscoid is (botany) resembling moss.
As a noun muscoid is
(zoology) any fly in the superfamily or muscoid can be (botany|obsolete) any moss-like flowerless plant, with a distinct stem, and often with leaves, but without any vascular system.
muscoid
English
Etymology 1
(etyl)
Noun
(
en noun)
(zoology) Any fly in the superfamily .
(loosely) Any fly in the section Schizophora.
Etymology 2
Noun
(
en noun)
(botany, obsolete) Any moss-like flowerless plant, with a distinct stem, and often with leaves, but without any vascular system.