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单词 equivalent
释义 equiv·a·lent
I. \-nt\ adjective
Etymology: Middle English, from Middle French or Late Latin; Middle French, from Late Latin aequivalent-, aequivalens, present participle of aequivalēre to have equal power, be equivalent, from Latin aequi- equi- + valēre to be strong, be worth — more at wield
1. : equal in force or amount
 < the misery of such a position is equivalent to its happiness >
 < a new TV film series that has the equivalent footage of 13 feature pictures >
specifically of a quantity : equal in area or volume but not admitting of superposition
 < a square equivalent to a triangle >
2.
 a. : like in signification or import
  < equivalent but differently worded statements of the two writers >
  : synonymous
  < substituted a term equivalent with it but more familiar >
 b. logic : having equivalence : implying each other
3.
 a. : equal in value : compensative, convertible
  < a person who consumes goods or accepts services without producing equivalent goods or performing equivalent services in return inflicts … injury — G.B.Shaw >
  < a sum equivalent to $250 in our currency >
  < a vitamin pill equivalent to four oranges >
  < the decimal 0.75 is equivalent to the fraction 3/4 >
 b. : corresponding or virtually identical especially in effect or function
  < a bureau of the French army equivalent to the intelligence division of the American general staff >
  : tantamount
  < where winning the primary is equivalent to election >
 c. : capable of being placed in one-to-one correspondence
  < equivalent mathematical sets >
4. obsolete : equal in might or authority
 < ancestors who stood equivalent with mighty kings — Shakespeare >
5. chemistry : having the same combining capacity
 < equivalent quantities of two elements >
6. : contemporaneous in deposition; sometimes : containing the same fauna or flora — used of strata
7. of a map projection : equal-area
Synonyms: see same
II. noun
(-s)
1. : one that is equivalent (as in value, meaning, or effect)
 < a price that was the equivalent of 10-years rent >
 < two years of high-school Latin or the equivalent >
 < a word with no equivalent in the English language >
 < the prose equivalent of a poem >
 < the secret Australian ballot … and its mechanical equivalent, the voting machine — H.R.Penniman >
: counterpart
 < the Chinese equivalents of Boston, New York, and Philadelphia >
 < the governor of Jerusalem (the modern equivalent of Pontius Pilate) — H.J.Laski >
2. or equivalent weight
 a. : the relative mass of an element that has the same combining capacity as a given mass of another element, the standard now usually being eight for oxygen but formerly one for hydrogen : the atomic weight divided by the valence — called also combining weight
 b. : the relative mass of a radical or compound that combines with a given mass of an element, radical, or compound
  < one equivalent of a base reacts with one of an acid to form a normal salt >
 especially : the mass of a compound that reacts with one equivalent of a given chemical element
3. : a psychopathological symptom replacing the usual one in a given disorder
 < a twilight state may be an epileptic equivalent >
III. adjective
1. : having the same solution set
 < equivalent equations >
2. : related by an equivalence relation
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更新时间:2025/3/26 12:43:15