sca·lar /ˈskelɚ/
  數量(a.)數量的,分等級的,梯狀的
  scalar
  純量; 純量的
  scalar
  量 純量
  Sca·lar n. Math. In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and direction.
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  scalar
       adj : of or relating to a directionless magnitude; "scalar
             implicatures"
       n : a variable quantity that cannot be resolved into components