family Cestidae fa·mi·ly·cestidae uncommon noun 1. coextensive with the order Cestida; ctenophores having a greatly flattened and elongated body SynonymsCestidaefamily Cestidae Related words Broader terms ctenophore family Parts Cestida Part of Cestum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
