Plumb Line — synonyms, definition
1. plumb line (Noun)
1 synonym
perpendicular
1 definition
plumb line (Noun) — A cord from which a metal weight is suspended pointing directly to the earth's centre of gravity; used to determine the vertical from a given point.
1 type of
cord
3 types
lead line plumb rule sounding line
3 parts
plumb plumb bob plummet