'Disposable' definitions:

Definition of 'disposable'

From: WordNet
adjective
Free or available for use or disposition; "every disposable piece of equipment was sent to the fire"; "disposable assets" [ant: nondisposable]
adjective
Designed to be disposed of after use; "disposable paper cups" [ant: nondisposable]
noun
An item that can be disposed of after it has been used

Definition of 'Disposable'

From: GCIDE
  • Disposable \Dis*pos"a*ble\, a. [From Dispose.] Subject to disposal; free to be used or employed as occasion may require; not assigned to any service or use. [1913 Webster]
  • The great of this kingdom . . . has easily afforded a disposable surplus. --Burke. [1913 Webster]
  • 2. designed to be disposed of after use; -- of articles of commerce. The term implies that it is less expensive to manufacture a new one than to clean and recycle the used item to make it fit for use again; as, disposable dishes; disposable diapers; disposable gloves. Opposite of reusable.
  • Syn: throwaway(predicate), non-reusable. [WordNet 1.5]