All folding rule synonyms
fold rule
F f noun folding rule
- yardstick — a stick a yard long, commonly marked with subdivisions, used for measuring.
- rule — a principle or regulation governing conduct, action, procedure, arrangement, etc.: the rules of chess.
- measure — a unit or standard of measurement: weights and measures.
- straightedge — a bar or strip of wood, plastic, or metal having at least one long edge of sufficiently reliable straightness for use in drawing or testing straight lines, plane surfaces, etc.
- t-square — a T -shaped ruler, used primarily in mechanical drawing, having a short crosspiece that slides along the edge of the drawing board as a guide to the perpendicular longer section in making parallel lines, right angles, etc., and as a support for triangles.
- slide rule — a device for performing mathematical calculations, consisting essentially of a ruler having a sliding piece moving along it, both marked with graduated, usually logarithmic, scales: now largely replaced by the electronic calculator.