tourmaline

play
noun tour·ma·line \ˈtu̇r-mə-lən, -ˌlēn\

Definition of tourmaline

  1. :  a mineral of variable color that consists of a complex borosilicate and is valued as a gem when transparent and cut

Origin and Etymology of tourmaline

Sinhalese toramalli carnelian


First Known Use: 1759

Other Mineralogy Terms


Learn More about tourmaline


Seen and Heard

What made you want to look up tourmaline? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to link together in a series or chain

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!