Constraintとは 意味・読み方・使い方

語源

From 中期英語 constreynt, constreynte, from Old French constreinte, past participle of constreindre (“to constrain”), from Latin cōnstringō (corresponding to the past participle cōnstrictus).

発音

• (Received Pronunciation, General American, Canada) IPA: /kənˈstɹeɪnt/
• (General Australian, New Zealand) IPA: /kənˈstɹæɪnt/
• 韻: -eɪnt

名詞

constraint (countable and uncountable, plural constraints)

1. Something that constrains; a restriction.

   Coordinate term: problem

   An engineer must recognize the difference between a constraint (to work within) and a problem (to be eliminated via resolution).

   • 1864 August – 1866 January, [Elizabeth] Gaskell, Wives and Daughters. An Every-day Story. […], volume (please specify |volume=I or II), London: Smith, Elder and Co., […], published 1866, →OCLC:

     Roger let go; they were not on firm ground, and he did not wish any watchers to think that he was exercising any constraint over his father; and this quiet obedience to his impatient commands did more to soothe the squire than anything else could have effected just then.

   • 2015, Quantifying a realistic:

     Today’s electricity demand (65 EJ/a) is well covered by the range, but constraints may occur in the long run locally. Amongst large countries, Nigeria and India may need imports to meet electricity demand.

2. An irresistible force or compulsion.

   They confessed, but only under severe constraint.

3. The repression of one's feelings.
   • 1841 February–November, Charles Dickens, “Barnaby Rudge. (please specify the chapter number)”, in Master Humphrey’s Clock, London: Chapman & Hall, […], →OCLC:

     Although his blood so rose against this man, and his wrath so stirred within him, that he could have struck him dead, he put such fierce constraint upon himself that he passed him without a word or look. Yes, and he would have gone on, and not turned, though to resist the Devil who poured such hot temptation in his brain, required an effort scarcely to be achieved, if this man had not himself summoned him to stop

4. (mathematics) A condition that a solution to an optimization problem must satisfy.
5. (databases) A linkage or other restriction that maintains database integrity.

派生語

関連する語

• constrain
• constrict
• restraint

Further reading

• constraint on Wikipedia.Wikipedia

アナグラム

• in contrast