Noun indicant has 2 senses

• indicant(n = noun.communication) indication - something that serves to indicate or suggest; "an indication of foul play"; "indications of strain"; "symptoms are the prime indicants of disease"
is a kind of communication
has particulars: gesture, evidence, shadow, tincture, trace, vestige, symptom, signalisation, signalization, pointing out, manifestation, mark, print, glimpse, forerunner, harbinger, herald, precursor, predecessor, clue, hint, smoke
Derived forms verb indicate₄, verb indicate₁

• indicant(n = noun.communication) index, index number, indicator - 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; Array
is a kind of fact
has particulars: bmi, body mass index, business index, leading indicator, price index, price level, short account, stock index, stock market index