parallel ruler
11Parallel motion — Parallel Par al*lel, a. [F. parall[ e]le, L. parallelus, fr. Gr. ?; para beside + ? of one another, fr. ? other, akin to L. alius. See {Alien}.] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines;… …
12Parallel rod — Parallel Par al*lel, a. [F. parall[ e]le, L. parallelus, fr. Gr. ?; para beside + ? of one another, fr. ? other, akin to L. alius. See {Alien}.] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines;… …
13Parallel sailing — Parallel Par al*lel, a. [F. parall[ e]le, L. parallelus, fr. Gr. ?; para beside + ? of one another, fr. ? other, akin to L. alius. See {Alien}.] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines;… …
14Parallel sphere — Parallel Par al*lel, a. [F. parall[ e]le, L. parallelus, fr. Gr. ?; para beside + ? of one another, fr. ? other, akin to L. alius. See {Alien}.] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines;… …
15Parallel vise — Parallel Par al*lel, a. [F. parall[ e]le, L. parallelus, fr. Gr. ?; para beside + ? of one another, fr. ? other, akin to L. alius. See {Alien}.] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines;… …
16parallel rule — noun or parallel ruler : an instrument for drawing a line parallel to another or a series of parallel lines: as a. : a flat rule running on a pair of rollers in one of its sides b. : a pair of straightedges connected by two equal parallel links… …
17parallel rulers — a pair of straightedges connected by two pivoted crosspieces of equal length so as to be parallel at all times, used for various navigational purposes, esp. for transferring the bearing of a plotted course to a compass rose. [1695 1705] * * *… …
18ruler — I (New American Roget s College Thesaurus) n. sovereign (see authority); rule, straightedge, folding rule, slide rule. See measurement. II (Roget s IV) n. 1. [One who governs] Syn. governor, leader, head of state, president, prime minister,… …
19Golomb ruler — OGR redirects here. For the OGR programming library, see GDAL. Golomb ruler of order 4 and length 6. This ruler is both optimal and perfect. In mathematics, a Golomb ruler is a set of marks at integer positions along an imaginary ruler such that… …
20Rolling ruler — A rolling ruler is a ruler that contains a cylinder much like a rolling pin inside, thereby enabling it to roll along a sheet of paper or other surface where it is being used. A rolling ruler can draw straight, parallel lines, and also has other… …
