Phrase guide
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noun
A wooden rule, two feet long, on one side of which is marked scales of equal parts, of chords, sines, tangents, rhombs, etc., and on the other side scales of logarithms of these various parts, by means of which many problems in navigation and surveying may be solved mechanically, using only divides.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: Gunter's rule
Antonyms: none provided
History
From Gunter + -'s + scale, from the surname of its inventor, the English clergyman, geometer, and mathematician Edmund Gunter (1581–1628).
