alimentation vs nourishment

alimentation and nourishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
alimentation	Yes	No	No	No
nourishment	Yes	No	No	No

As nouns, alimentation and nourishment are synonyms defined as:

Other synonyms of alimentation include aliment, nutriment, nutrition, sustenance, victuals.

alimentation (noun)	nourishment (noun)
the act of supplying food and nourishment	the act of nourishing
a source of materials to nourish the body	a source of materials to nourish the body