Definition from Wiktionary, the free dictionary
- To make small adjustments to something until optimization is achieved
- Jim fine-tuned the radio until the sound was perfect.
2011 January 18, Daniel Taylor, “Manchester City 4 Leicester City 2”, in Guardian Online:
- Tevez, however, may need to fine-tune his penalty-taking technique. In the 57th minute he had the chance to soothe any lingering nerves, when he ran clear from Kolarov's pass and again exposed the high line of Leicester's defence, only for Hobbs to hack him down. The centre-half was fortunate not to be shown a red card – a point Mancini made on the touchline – but Tevez aimed his penalty low and hard, straight down the middle, and Weale saved with his feet.
to make small adjustments to something until optimization is achieved