petrologist

English

Etymology

From petrology +‎ -ist.

Noun

petrologist (plural petrologists)

1. A geologist who specializes in petrology.
   • 2018, Tim Flannery, Europe: A Natural History, page 76:

     As Kirkpatrick worked, Otto Hahn - an intensely patriotic German lawyer and amateur petrologist turned Swedenborgian who believed life originated in outer space - was spending long hours staring down his microscope at what he took to be the fossilised remnants of algae.