What does aperient mean?
The definition of aperient
A*pe”ri*ent, a.
Etym: [L. aperiens, p. pr. of aperire to uncover, open; ab + parire, parere, to bring forth, produce. Cf. Cover, Overt.] (Med.)

Gently opening the bowels; laxative.

— n.

An aperient medicine or food. Arbuthnot.