Flinders bar

noun

Flinders bar

noun

Etymology Named after the English navigator Matthew Flinders (1774-1814).

Nautical, Transport A vertical soft iron bar placed in a tube typically on the fore side of a compass binnacle, used to counteract the horizontal effect of vertical magnetism induced by the Earth's magnetic field in the steel of a ship, an effect which varies with latitude.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.