ἀραιόω [ᾰρ],
A. make porous, rarefy,
τὴν ἐπιδερμίδα
Hp. Nat.Puer. 20
; τὴν σάρκα
Id. Vict. 3.78
; opp.πυκνόω,
Arist. Pr. 884a27 , Aret. CA 2.1 , cf. SA 2.2 , etc.
II.
Pass. ,to be rarefied,
Hp. Vict. 1.13 , Arist. Mu. 394a36 ; ἀραιουμένων τῶν σωμάτων
Ph. Bel. 71.43
.