disc
/dɪsk/( <美> 亦作disk)
noun
1
- a flat, thin, round object圆平物; 圆盘; 圆板, 圆片：
coins were made by striking a blank disc of metal
硬币是由空白的金属圆片冲制而成的
a man's body with an identity disc around the neck.
一具脖子上挂着身份圆牌的男子尸体。
1.1
disk
an information storage device for a computer in the shape of a round flat plate which can be rotated to give access to all parts of the surface. The data may be stored either magnetically (in a magnetic disk) or optically (in an optical disk such as a CD-ROM).磁盘, 碟片。
1.2
- short for COMPACT DISC.COMPACT DISC的简称。
1.3
- dated a gramophone record〈旧〉唱片。
1.4
discs
one of the suits in some tarot packs, corresponding to coins in others塔罗纸牌中的一种花色（和其他花色中的硬币相配）。
2
- a shape or surface that is round and flat in appearance圆形; 圆平面：
the smudged yellow disc of the moon.
模糊的黄色月轮。
3
- a roundish, flattened part in an animal or plant, in particular动植物的圆平部分, 尤指：
3.1
- （亦作 intervertebral disc）a layer of cartilage separating adjacent vertebrae in the spine椎间盘：
he suffered a prolapsed disc.
他患有椎间盘突出。
3.2
- Botany (in a composite flower head of the daisy family) a close-packed cluster of disc florets in the centre, forming the yellow part of the flower head【植】（菊科植物的）花盘。
USAGE
Generally speaking, the British spelling is disc and the US spelling is disk, although there is much overlap and variation between the two. In particular, the spelling for senses relating to computers is nearly always disk, as in floppy disk, disk drive, and so on.
词源
mid 17th cent. (originally referring to the seemingly flat round form of the sun or moon)： from French disque or Latin discus （see DISCUS）.