plumb rule
1Plumb rule — Plumb Plumb (pl[u^]m), n. [F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. mo lybos, mo libos, mo lybdos. Cf. {Plummet}, {Plunge}.] A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to… …
2plumb rule — plumb′ rule n. bui sur a device for determining perpendicularity, consisting of a narrow board with a plumb line hanging from it • Etymology: 1350–1400 …
3plumb rule — n. a narrow board equipped with a plumb line and bob, used by carpenters, masons, etc …
4plumb rule — noun a plumb line attached to a narrow board • Hypernyms: ↑plumb line, ↑perpendicular * * * noun Etymology: Middle English plomrewle, from plom, plum, plumbe, n., plumb + rewle, reule rule : a narrow board with a plumb line and bob used… …
5plumb rule — a device for determining perpendicularity, consisting of a narrow board with a plumb line and bob suspended from an upper edge. [1350 1400; ME plomreule] * * * …
6plumb rule — noun a plumb line attached to a board, used by builders and surveyors …
7plumb-rule — /ˈplʌm rul/ (say plum roohl) noun a device used by builders, etc., for determining perpendicularity, consisting of a narrow board fitted with a plumbline and bob …
8plumb-rule — …
9Plumb — (pl[u^]m), n. [F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. mo lybos, mo libos, mo lybdos. 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… …
10Plumb bob — Plumb Plumb (pl[u^]m), n. [F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. mo lybos, mo libos, mo lybdos. Cf. {Plummet}, {Plunge}.] A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to… …
