D defs.my
Entry 1 sense Webster, 1913

Scalar

/skāl'-ẽr/ · Sca·lar · IPA /skeɪ.lɚ/
01 n. In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and …
  1. 1.
    In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and direction.(Math.)