Acceptor n. : One who accepts

Acceptor n. : one who accepts an order or a bill of exchange; a drawee after he has accepted.

Example:
What is the final electron Acceptor in anaerobic respiration?

Taxonomy
acceptor, molecule, bill of exchange, chemistry, electron acceptor, atom, electrons, proton acceptor, Dictionary, time draft, substance, reactant, reaction, chemistry and biochemistry, Translations, Chemistry Dictionary, physical chemistry, compound.

Defination from the web:
acceptor n. also accepter One who signs a time draft or bill of exchange. Chemistry . The reactant in an induced reaction that has an increased rate ... In the Indian Contract Act of 1872, the acceptor is the person to whom a proposal is made, and who has communicated his or her ...