behemoth

from WordNet (r) 3.0 (2006)

behemoth
    n 1: someone or something that is abnormally large and powerful
         [syn: {giant}, {goliath}, {behemoth}, {monster},
         {colossus}]
    2: a person of exceptional importance and reputation [syn:
       {colossus}, {behemoth}, {giant}, {heavyweight}, {titan}]

from The Collaborative International Dictionary of English v.0.48

Behemoth \Be"he*moth\, n. [Heb. behem[=o]th, fr. Egyptian
   P-ehe-maut hippopotamus.]
   1. An animal, probably the hippopotamus, described in --Job
      xl. 15-24.
      [1913 Webster]

   2. something of large size or great power.
      [PJC] Behen

from Easton's 1897 Bible Dictionary

Behemoth
(Job 40:15-24). Some have supposed this to be an Egyptian word
meaning a "water-ox." The Revised Version has here in the margin
"hippopotamus," which is probably the correct rendering of the
word. The word occurs frequently in Scripture, but, except here,
always as a common name, and translated "beast" or "cattle."

from Hitchcock's Bible Names Dictionary (late 1800's)

Behemoth, beasts

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