name, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Alternative form of Neptunism. alt-of, alternative, uncountable
2. 2
   the now obsolete theory that all of the rocks of the earth's crust were formed by the agency of water. wordnet

Proper Noun

1. 1
   A discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans. historical

Synonyms

All synonyms

wernerism

Etymology

From Neptune + -ism.

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