ADP

American

[ay-dee-pee] / ˈeɪˈdiˈpi /

abbreviation

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

ADP British

noun

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

"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

ADP Scientific

/ ā′dē′pē′ /

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

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ADP

On Wednesday, payroll firm ADP reported that US private sector hiring had bounced back strongly in September, after registering its slowest pace this year the month before.

From Barron's ● Sep. 30, 2026

In August, ADP and Stanford researchers found a 2% year-over-year drop in employment for early- to mid-20s workers in the least AI-exposed jobs.

From MarketWatch ● Sep. 25, 2026

The private payroll firm ADP reported earlier this week that businesses added 38,000 jobs in August, the slowest pace of job creation since January.

From The Wall Street Journal ● Sep. 3, 2026

ADP manages the distribution of paychecks for more than 25 million employees at companies around the country.

From MarketWatch ● Sep. 3, 2026

The charging of the battery, in which ADP and a free phosphate group are combined to restore ATP, is coupled to the oxidative process; the close linking is known as coupled phosphorylation.

From "Silent Spring" by Rachel Carson

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