plumb line

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plumb line

(plŭm līn)
The line that is formed when a string with a weight tied at the end is suspended vertically.
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He was able to show that Everest had been right--the plumb lines had indeed been deflected from the true verticals.
Self-leveling laser plumb lines are available that project a vertical laser line onto any surface.
The first year of common observations of plumb lines variations carried out with the help of two tiltmeters of different classes provided us with new information about presently applied methodology of measurements, as well as with the interpretation of obtained results.
When passive end-feel is achieved, the examiner drops an imaginary plumb line perpendicular to the long axis of the tibia from the fifth MTP joint to the plantar-most spot on the heel and takes a reading by visualizing the distance between that spot on the heel and the "plumb line" (Fig.
The laser's two-position, pivoting head allows for quick adjustments from level to plumb lines.
They have been learning about building materials, spirit levels, plumb lines, different types of bricks, damp coursing - all aspects of construction really.
Plumb lines follow the pull of gravity perpendicular to the ground and so should your body.
Mark plumb lines at least as often as we recommend.