ˈjēˌägˌnäst, ˈjēəg-; jēˈägˌnäst, -_nəst noun
also ge·og·no·sist jēˈägnəsə̇st
( -s )
Etymology: geognost from French géognoste, from géo- ge- + Greek gnōstēs one that knows, from gignōskein to know; geognosist from geognosy + -ist
: a specialist in geognosy