I. ˈsiˌstȯid adjective
Etymology: International Scientific Vocabulary cyst- + -oid; probably originally formed as French cystoïde
1. : like a bladder
2.
[New Latin Cystoidea ]
: cystoidean
II. noun
( -s )
1. : a cystoid structure ; specifically : a mass resembling a cyst but lacking a membrane
2. : cystoidean