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ATP

American  
[ey-tee-pee] / ˈeɪˈtiˈpi /

abbreviation

Biochemistry.

  1. adenosine triphosphate: an ester of adenosine and triphosphoric acid, C 10 H 12 N 5 O 4 H 4 P 3 O 9 , 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.

ATP 1 British  

abbreviation

  1. advanced turboprop

  2. Association of Tennis Professionals

  3. 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
ATP 2 British  

noun

  1. 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

"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
ATP Scientific  
/ ā′tē′pē′ /

  1. Short for adenosine triphosphate. An organic compound, C 10 H 16 N 5 O 13 P 3, 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.

ATP Cultural  

  1. A key energy-carrying molecule in biological systems. It is produced in the body through the process of cell respiration and in plants through photosynthesis.

Usage

What else does ATP mean? While it can stand for many things, the initialism ATP commonly stands for the Association of Tennis Professionals, the cell-powering chemical adenosine triphosphate, and at this point.

Etymology

Origin of ATP

First recorded in 1940–45

Compare meaning

How does atp compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

British number one Jack Draper suffered a second-round loss to Frenchman Arthur Rinderknech on his return to the ATP Tour at the Dubai Tennis Championships.

From BBC

The run to his first tour-level final since Tokyo in 2024 will propel the former world number 14 up to 33 in the next ATP rankings.

From Barron's

Top seed Fritz, ranked seventh in the world, reached his 20th career ATP final and first since last September's Japan Open.

From Barron's

Draper and Delgado are scheduled to head to Rotterdam after this tie for the British number one's return to the ATP Tour.

From BBC

Apart from the four Saudi clubs, the PIF portfolio also includes Premier League club Newcastle and the LIV golf series, while it also sponsors the ATP and WTA tennis tours.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.