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Pronunciation varies by accent · noun
(zoology, obsolete) Any of the †Cystidea, a class of extinct echinoderms, now known as the †Cystoidea..
Use cystidean when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Cystidean means (zoology, obsolete) Any of the †Cystidea, a class of extinct echinoderms, now known as the †Cystoidea..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use cystidean where its definition matches the intended context.
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