pack thread

from The Collaborative International Dictionary of English v.0.48

Pack saddle \Pack saddle\, Pack thread \Pack thread\
   See under 2d {Pack}.
   [1913 Webster] packthread

from The Collaborative International Dictionary of English v.0.48

packthread \packthread\, pack thread \pack thread\n.
   A strong three-ply thread or small twine used to sew or tie
   packs or packages.
   [WordNet 1.5]

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