■ noun
1》 a person's nature with regard to the effect it has on their behaviour.
2》 the adjustment of intervals in tuning a piano or other musical instrument so as to fit the scale for use in different keys.
↘( equal ~ ) an adjustment in which the twelve semitones are equal intervals.
Origin
ME (in sense 'blending of elements in due proportions', later 'temperature'): from L. ~um 'correct mixture', from temperare 'mingle'; cf. temper .