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单词 variability
释义

WordReference Random House Learner's Dictionary of American English © 2024
var•i•a•ble /ˈvɛriəbəl/USA pronunciation   adj. 
  1. apt to vary; changeable;
    not staying the same:a cloudy day with variable winds.
  2. that can be deliberately varied:variable power controlled by a dial.
  3. inconstant;
    fickle:Her affections tend to be variable.

n. [countable]
  1. something that may or does vary:a situation with many variables.
  2. Mathematics, Computing
    • a quantity or function that may take on or assume any given value or set of values.
    • a symbol that represents this:the variable x in the equation = 15 + y.
var•i•a•bil•i•ty /ˌvɛriəˈbɪlɪti/USA pronunciation  n. [uncountable]
var•i•a•bly, adv. See -var-.

WordReference Random House Unabridged Dictionary of American English © 2024
var•i•a•ble  (vârē ə bəl),USA pronunciation adj. 
  1. apt or liable to vary or change;
    changeable:variable weather; variable moods.
  2. capable of being varied or changed;
    alterable:a variable time limit for completion of a book.
  3. inconstant;
    fickle:a variable lover.
  4. having much variation or diversity.
  5. [Biol.]deviating from the usual type, as a species or a specific character.
  6. Astronomy(of a star) changing in brightness.
  7. Meteorology(of wind) tending to change in direction.
  8. Mathematicshaving the nature or characteristics of a variable.

n. 
  1. something that may or does vary;
    a variable feature or factor.
  2. Mathematics, Computing
    • a quantity or function that may assume any given value or set of values.
    • a symbol that represents this.
  3. Philosophy[Logic.](in the functional calculus) a symbol for an unspecified member of a class of things or statements. Cf. bound variable, free variable. 
  4. AstronomySee variable star. 
  5. [Meteorol.]
    • Meteorologya shifting wind, esp. as distinguished from a trade wind.
    • Meteorology variables, doldrums (def. 2a).
  • Latin variābilis, equivalent. to vari(us) various + -ābilis -able
  • late Middle English 1350–1400
var′i•a•bili•ty, vari•a•ble•ness, n. 
vari•a•bly, adv. 
    • 3.See corresponding entry in Unabridged vacillating, wavering, fluctuating, unsteady, mercurial.
    • 1, 3.See corresponding entry in Unabridged constant.

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更新时间:2024/9/21 14:28:38