• WordNet 3.6
    • n Proboscidea an order of animals including elephants and mammoths
    • n Proboscidea in some classifications included in the genus Martynia and hence the two taxonomic names for some of the unicorn plants
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Webster's Revised Unabridged Dictionary
    • n. pl Proboscidea (Zoöl) An order of large mammals including the elephants and mastodons.
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Century Dictionary and Cyclopedia
    • proboscidea An order of Mammalia having a long flexible proboscis or trunk. It now contains only the elephants and their allies, as the mammoths and mastodons. The legs are mostly exserted beyond the common integument of the trunk, and all their joints are extensible in a right line. The teeth are enameled; the incisors are —in the living elephants two above and none below, in some extinct Proboscidea none above and two below, or two above and below, any of which may be developed into long tusks curving out of the mouth. The feet are all five-toed, so far as is known, incased in broad shallow hoofs, one to each digit, and the palmar and plantar surfaces are padded. The carpal bones are broad and short, in two separate, not interlocking, rows; the scaphoid and lunar are separate from each other; the cuneiform is broad, extended inward, and attached to the ulna; the unciform is directly in front of the cuneiform, and the magnum in front of the lunar; in the hind foot the astragalus articulates in front only with the navicular. The placenta is deciduate, zonary. The Proboscidea belong to the higher or educabilian series of placental mammals. Their nearest living relatives are the Hyracoidea. There are 2 families—Elephantidæ, containing the elephants, mammoths, and mastodons, and Dinotheriidæ, the dinotheres, the latter all extinct, the former now represented by only 2 living species. See cuts under Dinotherium, elephant, Elephantinæ, and Mastodontinæ.
    • proboscidea A class of corticate protozoans, also called Rhynchoflagellata, represented by the noctilucans.
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Webster's Revised Unabridged Dictionary
NL. See Proboscis


In literature:

Andrews, "On the Evolution of the Proboscidea", "Phil.
"Darwin and Modern Science" by A.C. Seward and Others
This is clearly exemplified in the case of the Proboscidea, and many other examples could be quoted.
"Form and Function" by E. S. (Edward Stuart) Russell
Proboscidea: an ordinal term for the Coccidae.
"Explanation of Terms Used in Entomology" by John. B. Smith
The only "Ungulates" which cannot be fitted in with some reasonable probability is the group of the Proboscidea.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard