noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A rare oxide mineral, the naturally-occurring form of calcium hydroxide. countable, uncountable
2. 2
   Someone from Portland, Oregon.

Etymology

From Portland + -ite.

Related phrases

calcium hydroxide

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