a. [ Gr. &unr_;, fr. &unr_; to turn around; peri` around + &unr_; to turn: cf. F. péritrope. ] 1. Rotatory; circuitous. [ R. ] [ 1913 Webster ]

2. Having the axis of the seed perpendicular to the axis of the pericarp to which it is attached. [ 1913 Webster ]