A plumb line.
| 单词 | θ212499 |
| 释义 | society > occupation and work > equipment > equipment for marking out work > [noun] > plumb-line or chalk-line (17) poundereOE A plumb line. righteOE A plumb line. Obsolete. rare. line1340 A cord used by builders and others for taking measurements, or for making things level or straight. (Cf. plumb-line, v.) line-and-plummet… plummeta1398 A ball of lead or other heavy material attached to a plumb line for determining the vertical; (also) the whole instrument, including line and… plumba1400 A ball or piece of lead or other dense substance, attached to a plumb line or quadrant for determining the vertical. Cf. plumb bob, n. Now rare. perpendicle?c1400 A plumb line. plumb rulec1400 An instrument used to test for verticality consisting of a narrow straight-edged board marked lengthways with a straight line and having a plumb… levelc1440 In some early glosses: = plumb-line. pendant1440 Miscellaneous technical uses. A plumb line. Obsolete. rare. plumb linea1456 A line or cord with a weight at one end, for determining the vertical. Also occasionally: = plumb rule, n. levelling-rule1598 = level, n. perpendicular1604 An instrument for indicating the vertical line from any point, such as a plumb line. Obsolete. plummet levelc1850 a mason's level with a plummet suspended above the base. point-brass1850 a conical brass bob on a plumb line, tapering to a point at the bottom; cf. point-iron n. Subcategories:— part of (3) |
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