αἱρεσιάρχης

ου, ὁ
A. leader of a school, S.E. P. 3.245; esp. of a medical school, IG 14.1759, Gal. 6.372; heresiarch, Just. Nov. 42.1.1 (pl.).
II. Astrol., dominating the 'condition' (cf. αἵρεσις B. 11.4), Paul.Al. R. 3.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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