a. [f. ADVISE + -ORY, as if ad. late L. *advīsōrius, f. late L. advīsor.] Having the attribute of advising; giving, or tending to give, advice.
1809. D. Ramsay, Hist. South Carolina, II. 20. Churches, as corporations, can enforce their by-laws, but their powers as spiritual courts are merely advisory.
1847. in Craig.
1862. J. Chester, in Macm. Mag., Nov., 62. The expression of their opinions is advisory only.
1882. Times, 27 March, 4/1. It is the result of protracted deliberation by the Naval Advisory Board, [etc.].