Definition of "baseline" in 英语

noun

1. A line that is a base for measurement or for construction.

   • A laser level generates a convenient baseline for interior work.

2. A datum used as the basis for calculation or for comparison.

   • We used the last doctor visit to provide baselines for vital statistics.

3. (typography) A line used as the basis for the alignment of glyphs.

   • Several characters typically have descenders below the lower baseline.

4. (tennis) The line at the farthest ends of the court indicating the boundary of the area of play.

   • The umpire missed the call. The ball hit the baseline.

5. (engineering) A configuration of software, hardware, or a process that is established and documented as a point of reference.

   • The baseline configuration includes unsupported components.

verb

1. (engineering, computing) To provide a baseline for measurement.

2. (tennis) To play from the baseline.