noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The act of becoming blue; bluing uncountable, usually
2. 2
   Bluishness uncountable, usually

Etymology

From Latin caerulescens, from caeruleus (“cerulean”), from caelum + -uleus, equivalent to cerulean + -escence.

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