-oidea
suffix forming plural proper nouns
forming the names of zoological classes or superfamilies
⇒ 
Crinoidea
⇒ 
Canoidea
Origin
from New Latin, from Latin -oīdēs -oid-oidea
Word Origin
1 
a suffix used in the names of zoological classes or entomological superfamilies.
Origin
< New Latin, plural of Greek -oeidēs -oid; see -a1
Related Words
- ammonoid
- Asteroidea
- ophiuroid
- echinoid
- echiuroid
-oideaa suffix used in naming zoological classes or entomological superfamilies.
[New Latin, from -oïdēs -oid]-oi·dea
\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
< Echinoidea >
< Hydroida >
< Ganoidei >
or -oi·da
< Echinoidea >
< Hydroida >
< Ganoidei >