[1] : The Collaborative International Dictionary of English v.0.48

pocketknife \pock"etknife`\, n.; pl. -knives.
   a knife with one or more blades, which fold into the handle
   so as to admit of being carried in the pocket.
   1913 webster
see also:
-knives 

[2] : WordNet (r) 2.0

pocketknife
     n : a knife with a blade that folds into the handle; suitable
         for carrying in the pocket syn: pocket knife
     also: pocketknives pl
see also:
pocket knife pocketknives 

Pocketknife >> P Words
Pocketknife, definition of term: Pocketknife
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