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acceptor

[ak-sep-ter] /ækˈsɛp tər/
noun
1.
2.
Finance. a person who accepts a draft or bill of exchange, especially the drawee who signs the draft or bill, confirming a willingness to pay it when due.
3.
Also called acceptor atom, acceptor impurity. Physics. an atom of impurity in a semiconducting crystal such that the atom can capture an electron, creating a hole in a filled electron shell and thereby changing the electric conductivity of the crystal.
4.
Chemistry. an atom, ion, group of atoms, or compound that combines with, or accepts, another entity, thereby profoundly affecting physical and chemical properties:
electron acceptor; water acceptor.
Origin
1350-1400
1350-1400; Middle English, in phrase acceptour of persones; accept + -or2, or (< Anglo-French acceptour) < Latin acceptor, equivalent to accep-, variant stem of accipere to receive, get (see accept) + -tor -tor
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for acceptor-atom

acceptor

/əkˈsɛptə/
noun
1.
(commerce) the person or organization on which a draft or bill of exchange is drawn after liability has been accepted, usually by signature
2.
(electronics) Also called acceptor impurity. an impurity, such as gallium, added to a semiconductor material to increase its p-type conductivity by increasing the number of holes in the semiconductor Compare donor (sense 5)
3.
(electronics) a circuit tuned to accept a particular frequency
4.
(chem) the atom or group that accepts electrons in a coordinate bond
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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acceptor-atom in Medicine

acceptor ac·cep·tor or ac·cept·er (āk-sěp'tər)
n.

  1. The reactant in an induced reaction that has an increased rate of reaction in the presence of the inductor.

  2. The atom that contributes no electrons to a covalent bond.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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acceptor-atom in Science
acceptor
  (āk-sěp'tər)   
  1. The reactant in an induced chemical reaction that has an increased rate of reaction in the presence of the inductor.

  2. An atom or molecule that receives one or more electrons from another atom or molecule, resulting in a chemical bond or flow of electric current. Compare donor. See also electron carrier.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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