ADP

American  

[ey-dee-pee] / ˈeɪˈdiˈpi /

abbreviation

1. Also called adenosine diphosphoric acid.  Biochemistry. adenosine diphosphate: an ester of adenosine and pyrophosphoric acid, C 10 H 12 N 5 O 3 H 3 P 2 O 7 , derived from ATP, and serving to transfer energy during glycolysis.

2. Computers. automatic data processing: the processing of data by computers or related devices, using techniques that reduce human intervention to a minimum.

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ADP British  

noun

1. biochem adenosine diphosphate; a nucleotide derived from ATP with the liberation of energy that is then used in the performance of muscular work

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ADP Scientific  

/ ā′dē′pē′ /

1. Short for adenosine diphosphate. An organic compound that is composed of adenosine and two phosphate groups. With the addition of another phosphate group, it is converted to ATP for the storage of energy during cell metabolism. It then forms again, from ATP, when a phosphate group is removed to release energy. Chemical formula: C ₁₀ H ₁₅ N ₅ O ₁₀ P ₂ .

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• ATP vs. ADP

Example Sentences

See Examples For:

ADP

In the big picture, AI’s impact on job numbers has been “very muted right now,” said ADP Chief Economist Nela Richardson.

From MarketWatch ● Aug. 10, 2026

Nela Richardson, chief economist at the large payroll processor ADP, said people who switch jobs have seen a notable bump-up in salaries.

From MarketWatch ● Aug. 6, 2026

The ADP report precedes additional jobs data from the Labor Department Friday.

From The Wall Street Journal ● Aug. 5, 2026

ADP is an appetizer of sorts ahead of the main course for markets: the official U.S. employment report on Friday.

From MarketWatch ● Aug. 5, 2026

So another cycle takes place — a cycle within a cycle: a molecule of ATP gives up one of its phosphate groups and retains only two, becoming a diphosphate molecule, ADP.

From "Silent Spring" by Rachel Carson