the complement of the latitude; the difference between a given latitude and 90°
Word origin
[1780–90; co- + latitude]This word is first recorded in the period 1780–90. Other words that entered Englishat around the same time include: carbon, carton, classification, ego, seepco- is a prefix meaning “with,” “together,” “in association,” sometimes with the derivedsense “auxiliary, subsidiary” (coenzyme; copilot), and, in mathematics and astronomy, with the sense “complement” (codeclination)