tɛfˈraɪt

Definitions

1. noun

A type of igneous rock that is a mixture of nepheline and feldspar.

“The tephrite rocks were found to be a result of volcanic activity in the region.”

2. adjective

Relating to or resembling tephrite; of or pertaining to a type of volcanic rock.

“The geologist specialized in the study of tephrite formations and their geological history.”