trigonometer

trigonometer

(ˌtrɪɡəˈnɒmɪtə)
n
(Mathematics) any of various instruments used in trigonometry
References in periodicals archive ?
To compute such quantities, zealous astronomers compiled detailed trig tables; indeed, the thirteenth-century trigonometer Najm al-Din al-Misri's table contained more than 400,000 entries.
Throughout his narrative, he features selections from the works of trigonometers written in a semblance of the original notation, followed by an explanation in modern terms.
Mark the trigonometers and the middle of the back lane for proper positioning.