geodynamics

noun

Etymology: Etymology tree Pre-Greek der. Proto-Hellenic *gayader. Ancient Greek γαῖᾰ (gaîă)clip. Ancient Greek γῆ (gê) Ancient Greek -ο- (-o-) Ancient Greek γεω- (geō-)der. English geo- Proto-Indo-European *dewh₂-der. Proto-Hellenic *dunamai Ancient Greek δῠ́νᾰμαι (dŭ́nămai) Ancient Greek δύναμις (dúnamis) Proto-Indo-European *-kos Ancient Greek -κός (-kós) Ancient Greek -ικός (-ikós) Ancient Greek δυναμικός (dunamikós)lbor. French dynamiqueder. English dynamic Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic Old English -as Middle English -es English -s English -ics English dynamics English geodynamics From geo- + dynamics.

1. the branch of geophysics that studies the deformation processes of planetary mantle and crust, and the resulting earthquakes and volcanism