indicant vs indication

indicant and indication both are nouns.

Word	Noun	Adjective	Verb	Adverb
indicant	Yes	No	No	No
indication	Yes	No	No	No

As nouns, indicant and indication are synonyms defined as:

indicant (noun)	indication (noun)
a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time	a datum about some physical state that is presented to a user by a meter or similar instrument
something that serves to indicate or suggest	something that serves to indicate or suggest
	the act of indicating or pointing out by name
	(medicine) a reason to prescribe a drug or perform a procedure
	something (as a course of action) that is indicated as expedient or necessary