order Cydippida vs Cydippidea

order Cydippida and Cydippidea both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Cydippida	Yes	No	No	No
Cydippidea	Yes	No	No	No

As nouns, order Cydippida and Cydippidea are synonyms defined as:

order Cydippida and Cydippidea: ctenophores having two long pinnate tentacles

Other synonyms of order Cydippida include Cydippea, Cydippida, order Cydippea, order Cydippidea.

order Cydippida (noun)	Cydippidea (noun)
ctenophores having two long pinnate tentacles	ctenophores having two long pinnate tentacles