noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A monoclinic nickel green mineral containing copper, hydrogen, lead, oxygen, and silicon.

Etymology

From Ludden + -ite, after Raymond W. Ludden, chief geologist, Phelps-Dodge Corporation.

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