The Collaborative International Dictionary of English v.0.48:

Mammoth \Mam"moth\ (m[a^]m"m[o^]th), n. [Russ. m[^a]mont,
   m['a]mant, fr. Tartar mamma the earth. Certain Tartar races,
   the Tungooses and Yakoots, believed that the mammoth worked
   its way in the earth like a mole.] (Zool.)
   An extinct, hairy, maned elephant (Mammuthus primigenius
   formerly Elephas primigenius), of enormous size, remains of
   which are found in the northern parts of both continents. The
   last of the race, in Europe, were coeval with prehistoric
   man.
   [1913 Webster]

   Note: Several specimens have been found in Siberia preserved
         entire, with the flesh and hair remaining. They were
         imbedded in the ice cliffs at a remote period, and
         became exposed by the melting of the ice.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mammoth \Mam"moth\ (m[a^]m"m[o^]th), a.
   Resembling the mammoth in size; very large; gigantic; as, a
   mammoth ox.
   [1913 Webster]

WordNet (r) 3.0 (2006):

mammoth
    adj 1: so exceedingly large or extensive as to suggest a giant
           or mammoth; "a gigantic redwood"; "gigantic
           disappointment"; "a mammoth ship"; "a mammoth
           multinational corporation" [syn: gigantic, mammoth]
    n 1: any of numerous extinct elephants widely distributed in the
         Pleistocene; extremely large with hairy coats and long
         upcurved tusks

Moby Thesaurus II by Grady Ward, 1.0:

123 Moby Thesaurus words for "mammoth":
   Atlantean, Brobdingnagian, Cyclopean, Gargantuan, Herculean,
   Homeric, Jumbo, abysmal, ammonite, amplitudinous, ankylosaur,
   archaeohippus, archaeotherium, archelon, arthrodiran, astronomic,
   astronomical, aurochs, awesome, bothriolepis, boundless,
   brachiosaur, brontops, brontothere, bulky, coccostean, coelodont,
   colossal, compsognathus, coryphodon, cosmic, cotylosaur, creodont,
   crossopterygian, cynodictis, diatryma, dimetrodon, dinichthyid,
   dinosaur, dinothere, diplodocus, duck-billed dinosaur,
   edaphosaurid, elasmosaur, elephant, elephantine, enormous, epic,
   eryopsid, eurypterid, extensive, galactic, gargantuan, giant,
   giant sloth, giantlike, gigantic, glyptodont, hadrosaur, hathi,
   heroic, hippo, hippopotamus, huge, immeasurable, immense, infinite,
   jumbo, king-size, large, leviathan, massive, massy, mastodon,
   mighty, monster, monstrous, monumental, mountainous, outsize,
   overgrown, pachyderm, palaeodictyopteron, palaeoniscid, palaeophis,
   palaeosaur, palaeospondylus, pelycosaur, phytosaur, plesiosaur,
   prodigious, profound, protoceratops, protylopus, pteranodon,
   pteraspid, pterichthys, pterodactyl, pterosaur, rhino, rhinoceros,
   river horse, sauropod, scelidosaur, sizable, smilodon, spacious,
   stupendous, titanic, titanosaur, towering, trachodon, tremendous,
   triceratops, trilobite, tyrannosaur, uintathere, urus, vast,
   voluminous, weighty, whale, woolly mammoth



U.S. Gazetteer Places (2000):

Mammoth, AZ -- U.S. town in Arizona
   Population (2000):    1762
   Housing Units (2000): 697
   Land area (2000):     1.083314 sq. miles (2.805770 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.083314 sq. miles (2.805770 sq. km)
   FIPS code:            43990
   Located within:       Arizona (AZ), FIPS 04
   Location:             32.722140 N, 110.644209 W
   ZIP Codes (1990):     85618
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Mammoth, AZ
    Mammoth