Definition of propylite
: an altered form of andesite important for its connection with certain ore deposits and originally supposed to mark the beginning of Tertiary eruptive activity
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of propylite
propylon + -ite
Seen and Heard
What made you want to look up propylite? Please tell us where you read or heard it (including the quote, if possible).