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Meaning of racking

rack•ing

Pronunciation: (rak'ing), [key]
— n. Masonry.
  1. the stepping back of the ends of courses successively from bottom to top in an unfinished wall to facilitate resumption of work or bonding with an intersecting wall.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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