Breadcrumb Home > Dictionary > Index S soil mechanics: Meaning and Definition of Find definitions for: soil' mechan"ics Pronunciation: [key] the branch of civil engineering that deals with the mechanical behavior of soil and similar materials when they are compressed or sheared or when liquids flow through them. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. soil group soil pipe ✖ Related Content Daily Word Quiz: evanescent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language