The phrase "defined timeframe" means a specific, clear, and set period of time in which something is expected to happen or be completed.
Sentences with «defined timeframe»
Once you know what you want from trading, you must systematically define a timeframe and a working plan for your trading career. (makemoneyyourway.com)
Eating during a more defined timeframe helps guarantee that you get the majority of your calories earlier in the day. (health.com)
The... technicians to ensure transactions close within defined timeframes. (ziprecruiter.com)