Meaning

noun something that serves to indicate or suggest

noun the act of indicating or pointing out by name

noun (medicine) a reason to prescribe a drug or perform a procedure

originFrom Old French indication, from Latin indicātiō (“a showing, indicating the value of something; valuation”), from indicō (“point out, indicate, show; value”); see indicate; compare French indication, Spanish indicación, Italian indicazione. By surface analysis, indicate + -ion.

Etymology from Wiktionary, CC BY-SA 3.0