# ADP

CEFR C2 · Noun

Source: https://englishreference.com/word/adp
Updated: 2026-05-11

## Definition

Stands for Adenosine Diphosphate. A molecule in your cells that helps store and move energy so your body can function.

For teachers: Abbreviation for Adenosine Diphosphate. An organic compound that is essential in metabolism and is formed by the removal of a phosphate group from ATP.

## Examples

- Cells use ADP to help manage energy.
- During cellular respiration, the addition of a phosphate group converts ADP back into ATP to store energy for later use.
- The continuous cycling between ATP and ADP ensures that biological systems have a constant supply of energy available for muscle contraction and chemical synthesis.

## Usage notes

- Typically used in scientific or academic contexts; often appears in the phrase 'ADP-ATP cycle'.

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