Meaning of DISK in English

DISK

[disk] or disc n, often attrib [L discus--more at dish] (1664) 1 a: the seemingly flat figure of a celestial body "the solar ~" b archaic: discus

2: any of various rounded and flattened animal anatomical structures (as an intervertebral disk)--compare slipped disk

3: the central part of the flower head of a typical composite made up of closely packed tubular flowers

4. a: a thin circular object b usu disc: a phonograph record c: a round flat plate coated with a magnetic substance on which data for a computer is stored d usu disc: optical disk: as (1): videodisc (2): compact disc

5. usu disc: one of the concave circular steel tools with sharpened edge making up the working part of a disc harrow or plow; also: an implement employing such tools -- disk.like adj

[2]disk or disc vt (ca. 1884): to cultivate with an implement (as a harrow or plow) that turns and loosens the soil with a series of disks

Merriam-Webster English vocab.      Английский словарь Merriam Webster.