coefficient of elasticity vs modulus of elasticity

coefficient of elasticity and modulus of elasticity both are nouns.

Word	Noun	Adjective	Verb	Adverb
coefficient of elasticity	Yes	No	No	No
modulus of elasticity	Yes	No	No	No

As nouns, coefficient of elasticity and modulus of elasticity are synonyms defined as:

coefficient of elasticity and modulus of elasticity: (physics) the ratio of the applied stress to the change in shape of an elastic body

Other synonyms of coefficient of elasticity include elastic modulus.

coefficient of elasticity (noun)	modulus of elasticity (noun)
(physics) the ratio of the applied stress to the change in shape of an elastic body	(physics) the ratio of the applied stress to the change in shape of an elastic body