ˈȯidēə noun plural suffix
or -oi·da -də ; or -oi·dei -dēˌī
Etymology: -oidea, New Latin, from Latin -oïdes -oid + -ea, neuter plural of -eus -eous; -oida, New Latin, from Latin -oïdes; -oidei, New Latin, from Latin -oïdes + -ei, masculine plural of -eus -eous
: animals characterized by or of the nature of — in names of higher taxa in zoology
Echin oidea
Hydr oida
Gan oidei