Liddell–Scott–Jones: ὑπό-καυσις

ὑπό-καυσις,εως,ἡ,

A. burning underneath,

Dieuch. ap. Orib. 4.5.2 .

2. burningof bricks,ὑ. τῆς ὀπτῆς(sc.πλίνθου) POxy. 2153.12

(iii A. D.).

II. the fire of the hypocaust,

Vitr. 5.10.1 , Plu. 2.658e ;heatingby this means, IGRom. 4.1210 (Thyatira); βαλανείου

POxy. 2127.8

(ii A. D.).