I. noun
or disc ˈdisk
Usage: often attributive
Etymology: Latin discus — more at dish
Date: 1664
1.
a. : the seemingly flat figure of a celestial body
the solar disk
b. archaic : discus
2. : any of various rounded and flattened animal anatomical structures ; especially : 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 thin circular object: as
a. usually disc : a phonograph record
b. : a round flat plate coated with a magnetic substance on which data for a computer is stored
c. usually disc : optical disk : as
(1) : videodisc
(2) : cd
5. usually 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 -ˌlīk adjective
[
disk 3 D
]
II. transitive verb
or disc
Date: circa 1884
: to cultivate with an implement (as a harrow or plow) that turns and loosens the soil with a series of discs