Noun : electron acceptor; water acceptor.    From Dictionary.com. 

As the acceptor is consumed during the fixation reaction it must obviously be regenerated from the assimilation products.    From Wordnik.com.  [Nobel Prize in Chemistry 1961 - Presentation Speech] Reference

That at some point well before the posted time maximum, the coin acceptor door locks up and won't accept more change.    From Wordnik.com.  [Seattle Post-Intelligencer: Local News] Reference

Becoming a good acceptor of feedback: the written rules.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

Like the nitroalkenes, it is classified as a Michael acceptor.    From Wordnik.com.  [Forever Young] Reference

Both the giver and the acceptor depend equally upon each other.    From Wordnik.com.  [The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 4 Books 13, 14, 15, 16, 17 and 18] Reference

The relevant recognition site is that of the tRNA acceptor stem.    From Wordnik.com.  [Analogy, How Scientifically Powerful is It?] Reference

Also the exchange of this information is stressful to the acceptor.    From Wordnik.com.  [Protozoa] Reference

The acceptor of a bill is the principal debtor; the drawer, the surety.    From Wordnik.com.  [The Government Class Book Designed for the Instruction of Youth in the Principles of Constitutional Government and the Rights and Duties of Citizens.] Reference

Becoming a good acceptor of feedback: is that a dagger I see before me?.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

I'm up for the former, but the designated acceptor for three of the latter.    From Wordnik.com.  [World Con Schedule] Reference

Becoming a good acceptor of feedback, part V: coping when the bookworm turns.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

Siva is represented as the acceptor of all things that are rejected by others.    From Wordnik.com.  [The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 3 Books 8, 9, 10, 11 and 12] Reference

Q: So who are you going to ask to serve as your official acceptor, should you win?.    From Wordnik.com.  [Personal Nebula Thoughts] Reference

Becoming a good acceptor of feedback: looking both ways before you cross the street.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

One can readily see that all the proof would be in the possession of B, the acceptor.    From Wordnik.com.  [Up To Date Business Home Study Circle Library Series (Volume II.)] Reference

The interaction is between an active site of the enzyme and an acceptor stem of tRNA.    From Wordnik.com.  [Analogy, How Scientifically Powerful is It?] Reference

The acceptor says these aren't "technical" awards, these are for "artistic decisions.".    From Wordnik.com.  [Simulblogging the Oscars.] Reference

Some conjugants will also transmit microscopic prokaryotic endoparasites to the acceptor.    From Wordnik.com.  [Protozoa] Reference

Becoming a good acceptor of feedback, part III: on beyond merely maintaining a pleasant face.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

The curcuminoids found in turmeric also function as a mild electrophile or Michael acceptor.    From Wordnik.com.  [Forever Young] Reference

Becoming a good acceptor of feedback, part IV: what do you mean, those pretty fishies might bite?.    From Wordnik.com.  [Author! Author! » 2008 » March] Reference

The acceptor is bound, though he accepted without consideration, and for the sole accommodation of the drawer.    From Wordnik.com.  [The Government Class Book Designed for the Instruction of Youth in the Principles of Constitutional Government and the Rights and Duties of Citizens.] Reference

I can set the acceptor ... no, the rejector would be better'to throw out all the cards above any given rating.    From Wordnik.com.  [Gray Lensman]

"Pray, sir," I said, "could you meet that one hundred pounds bill, supposing it could not be paid by the acceptor?".    From Wordnik.com.  [The International Monthly Magazine, Volume 5, No. 1, January, 1852] Reference

This not inconsiderable feat is accomplished by a class of exotic-sounding substances known as Michael acceptor pharmacophores.    From Wordnik.com.  [Forever Young] Reference

The remarkably protective properties of Michael acceptor pharmacophores are one of our finest strategies for staying Forever Young.    From Wordnik.com.  [Forever Young] Reference

In a reaction between two compounds an electron jumps from the donor (D), which is oxidized, to the acceptor (A), which is reduced: D.    From Wordnik.com.  [The Nobel Prize in Chemistry 1992] Reference

Rather unexpectedly, this acceptor was found to be a derivative of a sugar, ribulose, to which nobody had paid much attention previously.    From Wordnik.com.  [Nobel Prize in Chemistry 1961 - Presentation Speech] Reference

Anne, I would be happy to ask a woman to serve as my acceptor, but as you say, it would have to be someone appropriate to act on my behalf.    From Wordnik.com.  [Personal Nebula Thoughts] Reference

The acceptor germline sequence is the one with the highest total score.    From Wordnik.com.  [FreshPatents.com: Notable Patent Applications - 07/22/2010] Reference

An optional token acceptor is also available to accommodate validated parking.    From Wordnik.com.  [WN.com - Business News] Reference

Whats the difference between a stacked and stackerless bill acceptor/validater?.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

FRET theory primarily considers the interactions of a single donor-acceptor pair.    From Wordnik.com.  [Elites TV] Reference

Unfortunately, it is rarely known if only a single acceptor is present in a molecular complex.    From Wordnik.com.  [Elites TV] Reference