# Fick principle

> English word · Proper noun

## Definitions
1. A principle used in physiology and medicine, originally applied to measure cardiac output, stating that the total uptake (or release) of a substance by an organ is equal to the product of the blood flow through the organ and the arteriovenous concentration difference of the substance.

## Etymology
Named after German physician and physiologist Adolf Eugen Fick (1829–1901).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fick-principle