stoichiometry vs stoichiometric

stoichiometry is a noun but stoichiometric is not a noun.

Word	Noun	Adjective	Verb	Adverb
stoichiometry	Yes	No	No	No
stoichiometric	No	Yes	No	No

stoichiometry (noun)	stoichiometric (noun)
(chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)

stoichiometry (adjective)	stoichiometric (adjective)
	of or relating to stoichiometry