/ Dictionary / Index S shear modulus: Meaning and Definition of Find definitions for: shear' mod"ulus Pronunciation: [key] — Physics. Physics. a coefficient of elasticity of a substance, expressing the ratio between the force per unit area that laterally deforms the substance and the shear that is produced by this force. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. shearling shear transformation Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language