gunter

noun Nautical.

1. a jib-headed sail fastened to a vertical spar that is attached to a short mast, usually by two rings, in such a way that the spar can slide up the mast to spread the sail.

noun

1. Edmund,1581–1626, English mathematician and astronomer: inventor of various measuring instruments and scales.

noun

1. Edmund. 1581–1626, English mathematician and astronomer, who invented various measuring instruments, including Gunter’s chain