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

Allyce Hackmann, a spokeswoman for ADP, said it would defend itself against Nieporte’s allegations and that the company is in compliance with applicable laws.

From The Wall Street Journal ● Jul. 4, 2026

Private companies added a net 98,000 jobs in June after adding 122,000 jobs in May, human-resources company ADP said.

From The Wall Street Journal ● Jul. 2, 2026

Data from payroll firm ADP showed the private sector added 98,000 jobs last month, which was less than the 120,000 expected.

From Barron's ● Jul. 2, 2026

ADP is a lead act of sorts for the official U.S. employment report due Thursday — a day early this month because of the July 4 holiday.

From MarketWatch ● Jul. 1, 2026

The analogy of the storage battery has been used: ATP represents the charged, ADP the discharged battery.

From "Silent Spring" by Rachel Carson