ATP

[ey-tee-pee]

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

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

ATP

²

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

ATP

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

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.

Word History and Origins

Origin of ATP¹

First recorded in 1940–45

Example Sentences

The ATP now has greater oversight of the balls used on the men's tour.

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Last year he reached the US Open semi-finals and won his first two ATP titles.

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The majority of 1000 events on the WTA and men's ATP Tour last two weeks, as do all four Grand Slams.

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It is the first time the 19-year-old American has reached the final of an ATP Tour event.

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Sinner and current world number one Carlos Alcaraz both return to ATP Tour action in Beijing and Tokyo respectively this week.

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When To Use

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.