chenomorphae

from The Collaborative International Dictionary of English v.0.48

Chenomorphae \Che`no*mor"ph[ae]\, n. pl. [NL., from Gr. ? the
   wild goose + morfh` form.] (Zool.)
   An order of birds, including the swans, ducks, geese,
   flamingoes and screamers.
   [1913 Webster]