noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The quality or state of being serous. countable, uncountable
2. 2
   A thin watery animal fluid, resembling serum, such as synovial fluid or pericardial fluid. archaic, countable, uncountable

Synonyms

All synonyms

flowfluencyfluidityfluxjuicinesslactation

Etymology

Compare French sérosité. See serous.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.