Definitions for "Plumb bob"
Keywords:  bob, putter, putt, hung, aligned
A tool used to establish the outward lean or slant of a tree in relation to its base. Generally a weight attached to a string.
The plumb bob is used to find a true vertical (plumb) line. The bob is a weight attached to a string; the force of gravity pulls the bob straight down so that the string follows the true vertical.
To line up a putt with one eye closed and with the putter held vertically in front of the face.
a simple gadget used to mark a point directly under the transit, which is used by surveyors and civil engineers