scalar
UK[ˈskeɪlə]US[ˈskeɪlər]
adj
Relating to or having only magnitude, not direction.
n
A quantity that is fully described by a magnitude alone, as opposed to a vector.
Morpheme Breakdown
scal
ar
scal
ladder, scale
ar
adjective-forming suffix
Etymology
The term 'scalar' originates from the Latin scala, meaning "ladder" or "staircase," which metaphorically evolved to signify a graduated series of steps or a scale of measurement. This concept was adopted into mathematics in the 19th century to describe a quantity that can be represented by a single number on such a scale, in contrast to a vector which requires direction. The suffix -ar was appended to form an adjective, solidifying its modern meaning as a quantity possessing only magnitude, akin to a position on a ladder, without any directional component.
Analysis
Structure: scal (ladder, scale) + ar (adjective-forming suffix)
- scal: From Latin scala (ladder, staircase), referring to a graduated series or steps. In this word, it functions as the root conveying the concept of measurement or magnitude on a scale.
- ar: A Latin-derived suffix (-aris) used to form adjectives meaning "of, relating to, or resembling."
Examples
Temperature is a scalar quantity, while velocity is a vector.
The result of the dot product is a scalar value.
In physics, mass is considered a scalar property.