TEMPERAMENT
temperament
(noun) an adjustment of the intervals (as in tuning a keyboard instrument) so that the scale can be used to play in different keys
disposition, temperament
(noun) your usual mood; “he has a happy disposition”
temperament
(noun) excessive emotionalism or irritability and excitability (especially when displayed openly)
Source: WordNet® 3.1
Etymology
Noun
temperament (countable and uncountable, plural temperaments)
(obsolete) A moderate and proportionable mixture of elements or ingredients in a compound; the condition in which elements are mixed in their proper proportions.
(obsolete) Any state or condition as determined by the proportion of its ingredients or the manner in which they are mixed; consistence, composition; mixture.
A person's usual manner of thinking, behaving or reacting.
A tendency to become irritable or angry.
(music) The altering of certain intervals from their correct values in order to improve the moving from key to key.
(psychology) Individual differences in behavior that are biologically based and are relatively independent of learning, system of values and attitudes.
Source: Wiktionary
Tem"per*a*ment, n. Etym: [L. temperamentum a mixing in due
proportion, proper measure, temperament: cf. F. tempérament. See
Temper, v. t.]
1. Internal constitution; state with respect to the relative
proportion of different qualities, or constituent parts.
The common law . . . has reduced the kingdom to its just state and
temperament. Sir M. Hale.
2. Due mixture of qualities; a condition brought about by mutual
compromises or concessions. [Obs.]
However, I forejudge not any probable expedient, any temperament that
can be found in things of this nature, so disputable on their side.
Milton.
3. The act of tempering or modifying; adjustment, as of clashing
rules, interests, passions, or the like; also, the means by which
such adjustment is effected.
Wholesome temperaments of the rashness of popular assemblies. Sir J.
Mackintosh.
4. Condition with regard to heat or cold; temperature. [Obs.]
Bodies are denominated "hot" and "cold" in proportion to the present
temperament of that part of our body to which they are applied.
Locke.
5. (Mus.)
Definition: A system of compromises in the tuning of organs, pianofortes,
and the like, whereby the tones generated with the vibrations of a
ground tone are mutually modified and in part canceled, until their
number reduced to the actual practicable scale of twelve tones to the
octave. This scale, although in so far artificial, is yet closely
suggestive of its origin in nature, and this system of tuning,
although not mathematically true, yet satisfies the ear, while it has
the convenience that the same twelve fixed tones answer for every key
or scale, C# becoming identical with D, and so on.
6. (Physiol.)
Definition: The peculiar physical and mental character of an individual, in
olden times erroneously supposed to be due to individual variation in
the relations and proportions of the constituent parts of the body,
especially of the fluids, as the bile, blood, lymph, etc. Hence the
phrases, bilious or choleric temperament, sanguine temperament, etc.,
implying a predominance of one of these fluids and a corresponding
influence on the temperament. Equal temperament (Mus.), that in which
the variations from mathematically true pitch are distributed among
all the keys alike.
– Unequal temperament (Mus.), that in which the variations are
thrown into the keys least used.
Source: Webster’s Unabridged Dictionary 1913 Edition