proboscidea

from WordNet (r) 3.0 (2006)

Proboscidea
    n 1: in some classifications included in the genus Martynia and
         hence the two taxonomic names for some of the unicorn
         plants [syn: {Proboscidea}, {genus Proboscidea}]
    2: an order of animals including elephants and mammoths [syn:
       {Proboscidea}, {order Proboscidea}]

from The Collaborative International Dictionary of English v.0.48

Proboscidea \Pro`bos*cid"e*a\, n. pl. [NL. See {Proboscis}.]
   (Zool.)
   An order of large mammals including the elephants and
   mastodons.
   [1913 Webster]