# equivalent

## English

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### Etymology

equi- +‎ -valent. From Latin aequivalentem, accusative singular of aequivalēns, present active participle of aequivaleō (I am equivalent, have equal power).

### Pronunciation

equivalent (comparative more equivalent, superlative most equivalent)

1. Similar or identical in value, meaning or effect; virtually equal.
• South
For now to serve and to minister, servile and ministerial, are terms equivalent.
• 2012 March 1, Henry Petroski, “Opening Doors”, in American Scientist, volume 100, number 2, page 112-3:
A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.
2. (mathematics) Of two sets, having a one-to-one correspondence; equinumerous.
• Comprehensive MCQ's in Mathematics, page 3:
Finite sets A and B are equivalent sets only when n(A) = n(B) i.e., the number of elements in A and B are equal.
• 1950, E. Kamke, Theory of Sets, page 16:
All enumerable sets are equivalent to each other, but not to any finite set.
• 2000, N. L. Carothers, Real Analysis, page 18:
Equivalent sets should, by rights, have the same "number" of elements. For this reason we sometimes say that equivalent sets have the same cardinality.
• 2006, Joseph Breuer, Introduction to the Theory of Sets, page 41:
The equivalence theorem: If both M is equivalent to a subset N1 of N and N is equivalent to a subset M1 of M, then the sets M and N are equivalent to each other.
3. (mathematics) Relating to the corresponding elements of an equivalence relation.
4. (chemistry) Having the equal ability to combine.
5. (cartography) Of a map, equal-area.
6. (geometry) Equal in measure but not admitting of superposition; applied to magnitudes.
A square may be equivalent to a triangle.

#### Usage notes

• In mathematics, this adjective can be used in phrases like "A and B are equivalent", "A is equivalent to B", and, less commonly, "A is equivalent with B".

### Noun

equivalent (plural equivalents)

1. Anything that is virtually equal to something else, or has the same value, force, etc.
• Macaulay
He owned that, if the Test Act were repealed, the Protestants were entitled to some equivalent.
2. (chemistry) An equivalent weight.

### Verb

equivalent (third-person singular simple present equivalents, present participle equivalenting, simple past and past participle equivalented)

1. (transitive) To make equivalent to; to equal.

## Catalan

equivalent (masculine and feminine plural equivalents)

1. equivalent

## Dutch

### Pronunciation

•  Audio (file)

equivalent (not comparable)

1. equivalent

#### Inflection

Inflection of equivalent
uninflected equivalent
inflected equivalente
comparative
positive