ADP

noun

ˌā-(ˌ)dē-ˈpē 

: a nucleotide C₁₀H₁₅N₅O₁₀P₂ composed of adenosine and two phosphate groups that is formed in living cells as an intermediate between ATP and AMP and that is reversibly converted to ATP for the storing of energy by the addition of a high-energy phosphate group

called also adenosine diphosphate

Examples of ADP in a Sentence

Recent Examples on the Web

At least this is like getting a crunch wrap for free, as Pitts is going in the Round 12-13 range based on early ADP. —Jake Ciely, New York Times, 9 July 2025

Private sector hiring unexpectedly contracted in June, ADP says, a possible sign that the economy may not be as sturdy as in recent months. —Danny Bakst, Fortune, 3 July 2025

For example, private payrolls processor ADP reported a net decline in jobs added amid a hesitancy for companies to replace departing workers, ADP's chief economist said. —Elizabeth Robinson, NBC news, 3 July 2025

The primary jobs report follows a concerning update Wednesday from payroll processor ADP. —Derek Saul, Forbes.com, 3 July 2025

Word History

Etymology

adenosine diphosphate

First Known Use

1942, in the meaning defined above

Kids Definition

ADP

noun

ˌā-ˌdē-ˈpē 

ā-ˈdē-ˌpē

: a compound formed in living cells that reacts to form ATP

Medical Definition

ADP

noun

ˌā-ˌdē-ˈpē  ā-ˈdē-ˌpē 

: a nucleotide C₁₀H₁₅N₅O₁₀P₂ composed of adenosine and two phosphate groups that is formed in living cells as an intermediate between ATP and AMP and that is reversibly converted to ATP for the storing of energy by the addition of a high-energy phosphate group

called also adenosine diphosphate