one-shot

Short definition from Wiktionary

Adjective

1. 1
   Needing only a single attempt to become effective.
2. 2
   Unique; occurring only once.
3. 3
   Performing all the necessary steps on every occurrence, rather than relying on previous setup.
4. 4
   Measuring something at a single point in time, with no control group.
5. 5
   Pertaining to a single shot: Involving a single gunshot.
6. 6
   Pertaining to a single shot: Holding 1.5 ounces.
7. 7
   Pertaining to a single shot: Involving a single act of launching a ball.

Noun

1. 1
   A television program, film, or comic book that is not part of a series.
2. 2
   A cinematographic shot of a person talking to camera; a talking head.
3. 3
   A monostable multivibrator.
4. 4
   A programmable interval timer.
5. 5
   Something that occurs only once; a one-off.
6. 6
   A music sample that is played without immediate repetition.
7. 7
   A fanfic of only one chapter.
8. 8
   A single appearance by a performer.
9. 9
   A gun that must be reloaded after firing a single shot.
10. 10
    A product that is sold on its own, rather than as part of a line of products.
11. 11
    A player that can be killed in a single hit.
12. 12
    A camera shot that focuses on a single subject.

Verb

1. 1
   Alternative form of oneshot