An example of a one-off is an experiment that works out once.
(comparative more one-off, superlative most one-off)
- Much more common outside US. Relative usage frequency 5% (COCA versus BNC).
Probably from foundry work, for which making reusable molds is expensive and expediency the rule for molds not to be reused.
one-off - Computer Definition
(1) One disc at a time. Recorded CD-R discs are called one-offs because they are "burned" one at a time in an optical drive.
(2) Software that is written to solve a specific problem and run only one time is sometimes called a one-off.
(3) Any single product that is custom created for a customer one at a time. See me-tailing.