Etymology From French disque, from Latin discus, from Ancient Greek δίσκος (dískos, “disk, quoit, platter”). Doublet of dais, desk, discus, dish, disk, and diskos.
; the top one is acted on by the spindle and disc d, moved by the lever e;1847, editorial staff, “Improvement in Water Taps, Cister Valves, &c. ”, in Scientific American, series 1, Volume 3, Issue 9, page 68:
[A] peculiar luminous and sinuous marking appeared on the unillumined half of the inner planet, and almost simultaneously a faint dark mark of a similar sinuous character was detected upon a photograph of the Martian disc.1898, H.G. Wells, The War of the Worlds, London: William Heinemann, page 300:
4
A vinyl phonograph or gramophone record.
Turn the disc over, after it has finished.
5
Biology, Botany, Natural sciences The flat surface of an organ, as a leaf, any flat, round growth.
6
Abbreviation, Ellipsis Ellipsis of flying disc; synonym of frisbee; generic name for the trademark Frisbee.
Etymology From French disque, from Latin discus, from Ancient Greek δίσκος (dískos, “disk, quoit, platter”). Doublet of dais, desk, discus, dish, disk, and diskos.
It is held that discing is as much value to lucerne as cultivation is to corn.1901 October 11, “Discing Lucerne”, in The Agricultural Journal and Mining Record, volume 4, number 16, page 488:
2
Aeronautics, Aerospace, Aviation, Business, Engineering, Natural sciences, Physical sciencesOf a propeller To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airflow and maximizing the drag generated by the propeller.
In the air, the asymmetric drag generated by a discing propeller can result in loss of control of the airplane.