'packrat' definitions:

Definition of 'packrat'

(from WordNet)
noun
A collector of miscellaneous useless objects
noun
Any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects [syn: packrat, pack rat, trade rat, bushytail woodrat, Neotoma cinerea]

Definition of 'packrat'

From: GCIDE
  • packrat \packrat\, pack rat \pack rat\n.
  • 1. Any of several bushy-tailed rodents of the genus Neotoma of western North America, especially Neotoma cinerea, which hoard food and other objects in their nests.
  • Syn: trade rat, bushytail woodrat, Neotoma cinerea. [WordNet 1.5]
  • 2. A person who habitually saves items, even those unlikely to be useful. [Informal] [PJC]