acceptor


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acceptor

[ak′sep·tər]
(chemistry)
A chemical whose reaction rate with another chemical increases because the other substance undergoes another reaction.
A species that accepts electrons, protons, electron pairs, or molecules such as dyes.
(chemical engineering)
A calcined carbonate used to absorb the carbon dioxide evolved during a coal gasification process.
(solid-state physics)
An impurity element that increases the number of holes in a semiconductor crystal such as germanium or silicon; aluminum, gallium, and indium are examples. Also known as acceptor impurity; acceptor material.

acceptor

References in periodicals archive ?
MEI is one of the world's leading manufacturers of electronic bill acceptors, coin mechanisms, and other electronic payment systems.
The Microcoin QL is a perfect fit for our coin acceptor offering.
Adamant Approach, who was challenging for the lead when falling at the last in the Gerrard Supreme Novices' Hurdle at Cheltenham, is set to seek compensation in the Grade 1 Evening Herald Champion Novice Hurdle for which there are 13 acceptors, all of them Irish-trained.
Systems that utilize an MEI Series 3000 bill acceptor (including the RS3800/3900, LE 3800/3900, and EX3900) can also receive a software upgrade by remote FLASH download at a cost of $10-20 per unit depending on the quantity of upgrades ordered.
The bacteroide thetaiotaomicron displayed growth on low-mass alternan, raffinose acceptor and Neosugar.
THERE will be a maximum of nine runners contesting the Ritz Club Ascot Chase at the Berkshire track on Saturday following the announcement of the five-day acceptors.
Some acceptors such as 1-naphthol and 4-nitrophenol, which are highly conjugated with glucuronic acid in the late fetal stage, have been classified as group 1, whereas other acceptors such as estradiol, testosterone, and morphine, which are barely conjugated at birth, have been classified as group 2 (20,21).
2] sufficiently chang es the acceptor levels and electronic coupling efficiencies to produce cells with absorbed photon-to-current efficiencies approaching 40 %, constant across the visible spectrum.
Cost saving methods to achieve equal or better wire adhesion and rubber coverage in a system without cobalt or methylene acceptor resins is featured in the company's one-page bulletin.
When they also attached an acceptor molecule to the other end, the luminescence vanished.
So if more than one method is available, and acceptor can switch over to a more suitable method of choice if the first (or previous) method of choice becomes unacceptable.
For years, scientists have been able to store light energy chemically using systems that utilize the ability of a donor molecule--one that becomes charged when exposed to light--to transfer its electric charge to an acceptor molecule.