signifiˈcatrixAstrol. [L. fem. form corresponding to significator.] = significator 1 a. 1647Lilly Chr.Astrol. lxxiii. 421 The {moonfq} her Significatrix [being] neer the ☉.1653R. Sanders Physiogn. 152 The Moon is..commonly significatrix in Flegmatick nativities.