A thin, flat, circular plate or similar object.
A coin is a disk of metal.
A two-dimensional geometric region, the set of points bounded by a circle.
Something resembling a disk.
Venus' disk cut off light from the Sun.
To harrow.
That is alkali. Mr. Kochendorfer: I have a ten-year apple orchard that I disked last year and kept it tolerably clean this spring.
To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airstream and maximizing the drag generated by the propeller.
From Ancient Greek δίσκος (dískos, “a circular plate suited for hurling”), from δικέω (dikéō, “to hurl, to launch”). Doublet of dais, desk, disc, discus, dish, and diskos.
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