from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A narrow strip of wood with a plumb line hanging from it, used to test verticality.
from the GNU version of the Collaborative International Dictionary of English
- n. a narrow board with a plumb line, used by builders and carpenters.
from The Century Dictionary and Cyclopedia
- n. A narrow board with parallel edges having a straight line drawn through the middle, and a string carrying a metal weight attached at the upper end of the line. It is used by masons, bricklayers, carpenters, etc., for determining a vertical.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a plumb line attached to a narrow board
Sorry, no etymologies found.