cystoidean
English
Etymology
From
cystoid
+
-ean
.
Noun
cystoidean
(
plural
cystoideans
)
(
zoology
)
A
cystidean
(
extinct echinoderms
)
References
“
cystoidean
”, in
Webster’s Revised Unabridged Dictionary
, Springfield, Mass.:
G. & C. Merriam
,
1913
,
→OCLC
.