The Collaborative International Dictionary of English v.0.48:

Quarter-saw \Quar"ter-saw`\, v. t. [imp. & p. p. Quarter-sawed
   -sawn; p. pr. & vb. n. Quarter-sawing.]
   To saw (a log) into quarters; specif., to saw into quarters
   and then into boards, as by cutting alternately from each
   face of a quarter, to secure lumber that will warp relatively
   little or show the grain advantageously.
   [Webster 1913 Suppl.]