Perpendicular
Hawkins' Electrical Dictionary · 1915 · p. 3
—1. At right angles to the plane of the horizon; vertical; upright. 2. In geometry, a line at right angles to a given line.
Bu kavram başka kaynaklarda da geçiyor
The Slang Dictionary Etymological Historical and Anecdotal (1913)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
Explanation of Terms Used in Entomology (1906)
Chamber's Etymological of the English Language (1895)
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
Zell's Condensed Dictionary (1879)
A Church Dictionary (1854)
Pantologia (1813)
A Military Dictionary (1810)
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