the weight, usually of lead, at the end of a plumb line; plummet
1835, from plumb (n.) + bob (n.1).
[pluhm] /plʌm/ noun 1. a small mass of lead or other heavy material, as that suspended by a line and used to measure the depth of water or to ascertain a vertical line. Compare . adjective, Also, . 2. true according to a plumb line perpendicular. 3. Informal. downright or absolute. adverb, Also, . 4. […]
[pluhm-bee-uh s] /ˈplʌm bi əs/ adjective 1. resembling or containing lead; leaden. /ˈplʌmbɪəs/ adjective 1. made of or relating to lead or resembling lead in colour
[pluhm-er] /ˈplʌm ər/ noun 1. a person who installs and repairs piping, fixtures, appliances, and appurtenances in connection with the water supply, drainage systems, etc., both in and out of buildings. 2. Slang. an undercover operative or spy hired to detect or stop leaks of news or secret information, often using questionable or illegal methods, […]
noun 1. (def 3). [pluhn-jer] /ˈplʌn dʒər/ noun 1. Machinery. a pistonlike reciprocating part moving within the cylinder of a pump or hydraulic device. 2. Automotive. a pistonlike part in the valve of a pneumatic tire. 3. Also called force cup, plumber’s friend, plumber’s helper. a device consisting of a handle with a rubber suction […]