'Harvester' definitions:

Definition of 'harvester'

From: WordNet
noun
Someone who helps to gather the harvest [syn: harvester, reaper]
noun
Farm machine that gathers a food crop from the fields [syn: harvester, reaper]

Definition of 'Harvester'

From: GCIDE
  • Harvester \Har"vest*er\ (-[~e]r), n.
  • 1. One who harvests; a machine for cutting and gathering grain; a reaper. [1913 Webster]
  • 2. (Zool.) A harvesting ant. [1913 Webster]