Definition of equivalent

• a person or thing equal to another in value or measure or force or effect or significance etc; "send two dollars or the equivalent in stamps"
• the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen
• equal in amount or value; "like amounts"; "equivalent amounts"; "the same amount"; "gave one six blows and the other a like number"; "an equal number"; "the same number"