- Biochemistry. adenosine triphosphate: an ester of adenosine and triphosphoric acid, C10H12N5O4H4P3O9, formed especially aerobically by the reaction of ADP and an orthophosphate during oxidation, or by the interaction of ADP and phosphocreatine or certain other substrates, and serving as a source of energy for physiological reactions, especially muscle contraction.
Origin of ATP
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for atp
ATP Player Council members Gilles Simons and Sergiy Stakhovsky were recently both critical of the equal-pay policy.ESPN’s ‘Venus Vs.’ Explores Venus Williams’s Equal-Pay Legacy
July 2, 2013
Despite this, he finished the year 17–0, winning three tournaments and bashing Nadal in the ATP Tour Finals.Roger Federer: The Transformation of a Tennis Star
July 8, 2012
The ATP was once a seriously badass union, with a brand of solidarity that would make Marvin Miller proud.
Murray reports that an ATP Tour Manager advised them against taking the court, but seemingly could do no more than that.
The ATP will threaten to nuke the TP, totally unaware that the TP also possesses nukes set to launch on warning.8 Nightmares in 2011: U.S. Economy, Olbermann, More
Leslie H. Gelb
January 23, 2011
- adenosine triphosphate; a nucleotide found in the mitochondria of all plant and animal cells. It is the major source of energy for cellular reactions, this energy being released during its conversion to ADP. Formula: C 10 H 16 N 5 O 13 P 3
- advanced turboprop
- Association of Tennis Professionals
- automatic train protection: a safety system which automatically prevents a train from passing through a stop signal
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
Word Origin and History for atp
abbreviation of adenosine triphosphate, attested from 1939.
Online Etymology Dictionary, © 2010 Douglas Harper
- Adenosine triphosphate; an adenosine-derived nucleotide that supplies large amounts of energy to cells for various biochemical processes, including muscle contraction and sugar metabolism, through its hydrolysis to ADP.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Short for adenosine triphosphate. An organic compound, C10H16N5O13P3, that is composed of adenosine and three phosphate groups. It serves as a source of energy for many metabolic processes. ATP releases energy when it is broken down into ADP by hydrolysis during cell metabolism.
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