temperament
Cross references: 1. disposition tem.per.a.ment \'tem-p(*-)r*-m*nt, -p*r-m*nt\ n [ME, fr. L temperamentum, fr. temperare to mix, temper] obs 1a: constitution of a substance, body, or organism with respect to the mixt ure or balance of its elements, qualities, or parts : MAKEUP 1b: COMPLEXION 2a: the peculiar or distinguishing mental or physical character determined by the relative proportions of the humors according to medieval physiology 2b: characteristic or habitual inclination or mode of emotional response (nervous ~} 2c: extremely high sensibility; esp : excessive sensitiveness or ir ritability obs 3a: CLIMATE 3b: TEMPERATURE 4a: the act or process of tempering or modifying : ADJUSTMENT, C OMPROMISE 4b: middle course : MEAN 5: the process of slightly modifying the musical intervals of the pure scal e to produce a set of 12 equally spaced tones to the octave enabling a keyboard instrument to play in all keys
Webster's English Dictionary