Plural of chorioma; tumors or abnormal growths of chorionic tissue.
From chorio- (Greek khoros 'membrane') + -oma 'tumor' + -s plural. Medical term for any tumor involving the chorion.
The Greek suffix '-oma' always means tumor, so any medical term ending in -oma is describing some kind of abnormal growth—doctors can identify the type of tumor just from the prefix.
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