excavator

from WordNet (r) 3.0 (2006)
excavator
    n 1: a workman who excavates for foundations of buildings or for
         quarrying
    2: a machine for excavating [syn: {power shovel}, {excavator},
       {digger}, {shovel}]
    
from The Collaborative International Dictionary of English v.0.48
Excavator \Ex"ca*va`tor\, n.
   One who, or that which, excavates or hollows out; a machine,
   as a dredging machine, or a tool, for excavating.
   [1913 Webster]
    

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