plumb line : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: plumb line	by the DICT Development Group
2 results for plumb line
From WordNet (r) 3.0 (2006) [wn]:
plumb line n a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point Synonym(s): plumb line, perpendicular
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Plumb \Plumb\, n. [F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. [?], [?], [?]. Cf. {Plummet}, {Plunge}.] A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction; a plummet; a plumb bob. See {Plumb line}, below. {Plumb bob}. See {Bob}, 4. {Plumb joint}, in sheet-metal work, a lap joint, fastened by solder. {Plumb level}. See under {Level}. {Plumb line}. (a) The cord by which a plumb bob is suspended; a plummet. (b) A line directed to the center of gravity of the earth. {Plumb rule}, a narrow board with a plumb line, used by builders and carpenters.