英文字典中文字典Word104.com

The Collaborative International Dictionary of English v.0.48 (gcide)

Disc \Disc\ (d[i^]sk), n. [See {Disk}, {Dish}.]
A flat round plate; (Biol.) A circular structure either in
plants or animals; as, a blood disc, a germinal disc, etc.
Same as {Disk}.
[1913 Webster]


Disk \Disk\ (d[i^]sk), n. [L. discus, Gr. di`skos. See {Dish}.]
[Written also {disc}.]
1. A discus; a quoit.
[1913 Webster]

Some whirl the disk, and some the javelin dart.
--Pope.
[1913 Webster]

2. A flat, circular plate; as, a disk of metal or paper.
[1913 Webster]

3. (Astron.) The circular figure of a celestial body, as seen
projected of the heavens.
[1913 Webster]

4. (Biol.) A circular structure either in plants or animals;
as, a blood disk; germinal disk, etc.
[1913 Webster]

5. (Bot.)
(a) The whole surface of a leaf.
(b) The central part of a radiate compound flower, as in
sunflower.
(c) A part of the receptacle enlarged or expanded under,
or around, or even on top of, the pistil.
[1913 Webster]

6. (Zool.)
(a) The anterior surface or oral area of c[oe]lenterate
animals, as of sea anemones.
(b) The lower side of the body of some invertebrates,
especially when used for locomotion, when it is often
called a creeping disk.
(c) In owls, the space around the eyes.
[1913 Webster]

{Disk engine}, a form of rotary steam engine.

{Disk shell} (Zool.), any species of Discina.
[1913 Webster]