noun
Meaning 1
The scientific principle that natural laws and processes operated in the past in the same way and at the same rates that they operate today, and sometimes in the same way everywhere in the universe as well.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: catastrophism, convulsionism