bending vs deflection

bending and deflection both are nouns.

Word	Noun	Adjective	Verb	Adverb
bending	Yes	No	No	No
deflection	Yes	No	No	No

As nouns, bending and deflection are synonyms defined as:

Other synonyms of bending include deflexion.

As nouns, deflection is a hyponym of bending; that is, deflection is a word with a more specific, narrower meaning than bending:

Other hyponyms of bending include deflexion, refraction.

bending (noun)	deflection (noun)
the act of bending something	a turning aside (of your course or attention or concern)
the property of being bent or deflected	the property of being bent or deflected
movement that causes the formation of a curve	the amount by which a propagating wave is bent
	the movement of the pointer or pen of a measuring instrument from its zero position
	a twist or aberration; especially a perverse or abnormal way of judging or acting