transudation
- noun
- /ˌtrænzjʊˈdeɪʃən/
- Specialized
- The doctor explained that transudation is a normal process that allows nutrients to reach cells through the blood vessel walls.
Examples
-
When arteriovenous gradient changes occur, transudation of fluid goes into the interstitial space if the tissue pressure does not return to normal with muscle relaxation.
Academic text (2004) -
When transudation occurs, fluid is pushed through the capillary wall into surrounding tissue due to pressure differences.
-
In patients with heart failure, increased pressure can lead to excessive transudation of fluid into the lungs.
Surface Forms
Morphology
transudation = transudate (opaque) = transud + ation
The derivation from the verb 'transudate' to the noun by '-ation' is regular and transparent morphologically, but the base 'transudate' is a specialized medical term unfamiliar to most learners.
Etymology
Transudation comes from the parts trans- 'across' and sudare 'to sweat', so imagine fluid 'sweating across' a vessel wall. So transudation is the slow process of fluid passing across a membrane because of pressure differences, not because of inflammation.