A line that is a base for measurement or for construction. / A datum used as the basis for calculation or for comparison. / (typography) A line used as the basis for the alignment of glyphs.

(engineering, computing) To provide a baseline for measurement. / (tennis) To play from the baseline.

plural of baseline

simple past tense and past participle of baseline

plural of baseliner

(tennis) A player who plays from the baseline, seldom moving to the net.

present participle of baseline

(astronomy) A technique used to improve the angular resolution of a radio telescope by using multiple synchronized antennas very far apart.