scalar

A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction.

A number, numerical quantity, or element in a field.

A device that yields an output equal to the input multiplied by a constant, as in a linear amplifier.

Of or relating to a scalar.

In quaternions, a real number, positive or negative, integral, fractional, or surd: but some writers lately extend the meaning so as to include imaginaries.

Of the nature of a scalar.

In physics, a quantity, such as mass or volume, which has magnitude but not direction.

In the quaternion analysis, a quantity that has magnitude, but not direction; — distinguished from a vector, which has both magnitude and direction.

Having magnitude but not direction