peritropal
Involving turning oneself around: rotating or circuitous.
rare
“Suppose I should get up a ballet, drill the girls myself, and learn ’em all the peritropal movements; see that their skirts are short enough, and that they are graceful while dancing.[…]”
Having the axis of the seed perpendicular to the axis of the pericarp to which it is attached.
archaic
Where it comes from
From Ancient Greek περί (perí, “around”) + τρόπος (trópos, “turn”) + -al.
Adapted from the Wiktionary entry peritropal (CC BY-SA 4.0).