IN MATH: 1. n. a number line. 2. usually the number line which is vertical and perpendicular to the xaxis in a Cartesian coordinate system; the line x = 0. EX. The point (0,3) is on the yaxis and 3 units lower than 0.

IN ENGLISH: 1. as defined above.
APPLICATION: See list 230.
1. At what point does the xaxis intersect the yaxis?
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