As adjectives the difference between acaroid and scaroid
is that acaroid is shaped like or resembling a mite while scaroid is of or relating to the Scaridae, a family of marine fishes.
acaroid
English
Adjective
(biology, zoology) Shaped like or resembling a mite.
scaroid
English
Adjective
(
-)
(zoology) Of or relating to the Scaridae, a family of marine fishes.
(
Webster 1913)