How do you spell Telluric

Available Definitions:
1) a. - Of or pertaining to the earth; proceeding from the earth.
2) a. - Of or pertaining to tellurium; derived from, or resembling, tellurium; specifically, designating those compounds in which the element has a higher valence as contrasted with tellurous compounds; as, telluric acid, which is analogous to sulphuric acid.