DISJUNCTURE
Dis*junc"ture, n.
Defn: The act of disjoining, or state of being disjoined; separation.
Fuller.
DISK
Disk, n. Etym: [L. discus, Gr. Dish.] [Written also disc.]
1. A discus; a quoit. Some whirl the disk, and some the javelin dart. Pope.
2. A flat, circular plate; as, a disk of metal or paper.
3. (Astron.)
Defn: The circular figure of a celestial body, as seen projected of the heavens.
4. (Biol.)
Defn: A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
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.