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The Collaborative International Dictionary
Acceptor

Acceptor \Ac*cept"or\ (#; 277), n. [L.] One who accepts; specifically (Law & Com.), one who accepts an order or a bill of exchange; a drawee after he has accepted.

Wiktionary
acceptor

n. 1 One who accepts. 2 (context legal commerce English) One who accepts a draft or a bill of exchange; a drawee after he has accepted. 3 (context chemistry English) An atom or molecule which can accept an electron to form a chemical bond. 4 (context biochemistry English) A transfer RNA molecule that can accept a specific amino acid 5 (context physics English) A chemical acceptor atom forming a positive hole in a semiconductor.

WordNet
acceptor
  1. n. (chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated

  2. the person (or institution) who accepts a check or draft and becomes responsible for paying the party named in the draft when it matures

Wikipedia
Acceptor

Acceptor may refer to:

  • Acceptor (accounting), the addressee of a bill of exchange
  • 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 acceptance of the said proposal
  • Electron acceptor, in chemistry an atom or compound to which electrons are donated during the formation of a coordinate covalent bond
  • Acceptor (semiconductors)
  • Acceptor, in sequential logic a type of finite state machine
Acceptor (semiconductors)

In semiconductor physics, an acceptor is a dopant atom that when added to a semiconductor can form a p-type region.

For example, when silicon (Si), having four valence electrons, needs to be doped as a p-type semiconductor, elements from group III like boron (B) or aluminium (Al), having three valence electrons, can be used. The latter elements are also called trivalent impurities. Other trivalent dopants include indium (In) and gallium (Ga).

When substituting for a Si atom in the crystal lattice, the three valence electrons of boron form covalent bonds with three of the Si neighbours but the bond with the fourth neighbour remains unsatisfied. The unsatisfied bond attracts electrons from the neighbouring bonds. At room temperature, an electron from a neighbouring bond will jump to repair the unsatisfied bond thus leaving a hole (a place where an electron is deficient). The hole will again attract an electron from the neighbouring bond to repair this unsatisfied bond. This chain-like process results in the hole moving around the crystal and able to carry a current thus acting as a charge carrier. The initially electroneutral acceptor becomes negatively charged ( ionised).

Usage examples of "acceptor".

He held a number of bills, many of which were suspected by him to be forged--that is to say, that the figures had been altered after the signature of the acceptor had been written.

Fire, the Acceptor of sacrifices, ravishing away from them their darkness, give the light.

Slight imperfections in the match were negotiated by a jostling crowd of donor or acceptor molecules.

The Acceptor probed and touched and caressed this new region of space with its farflung senses.

How could they expect the Acceptor to report specifically when so much was happening!

The Acceptor could tell the Tandu so much about that angry voice, but they were only interested in shutting it out.

The Acceptor was enthralled by the angry voices that churned below, and listened with all its might.

This man was her friend, buyer of unneeded pickups, acceptor of her erotic video collection.

But even if the market falls and some of the acceptors break, the banks will have to pay up.