The Collaborative International Dictionary
Cypseliform
Cypseliform \Cyp*sel"i*form\ (s?p-s?l"?-f?rm), a. [L. cypselus a kind of swallow, Gr. ???? + -form.] (Zo["o]l.) Like or belonging to the swifts ( Cypselid[ae].)
Wiktionary
cypseliform
a. (context zoology English) Like or belonging to the swifts (''Cypselidae''.)