equivalent

adjective

• equal in value, amount, function, meaning, etc.:one unit is equivalent to one glass of wine
• (equivalent to) having the same or a similar effect as:some regulations are equivalent to censorship
• Mathematics belonging to the same equivalence class.

noun

• 1a person or thing that is equal to or corresponds with another in value, amount, function, meaning, etc.:the French equivalent of the Bank of England

• 2 (also equivalent weight) Chemistry the mass of a particular substance that can combine with or displace one gram of hydrogen or eight grams of oxygen, used in expressing combining powers, especially of elements.