Defn: Of or pertaining to hot water; — used esp. with reference to the action of heated waters in dissolving, redepositing, and otherwise producing mineral changes within the crust of the globe.

HYDROTHORAX
Hy`dro*tho"rax, n. Etym: [Hydro-, 1 + thorax.] (Med.)

Defn: An accumulation of serous fluid in the cavity of the chest.

HYDROTIC
Hy*drot"ic, a. Etym: [Gr. "y`dwr water: cf. Gr. hydrotique.]

Defn: Causing a discharge of water or phlegm.
— n. (Med.)

Defn: A hydrotic medicine.

HYDROTICAL
Hy*drot"ic*al, a.

Defn: Hydrotic.

HYDROTROPE
Hy"dro*trope, n. Etym: [Hydro-, 1 + Gr.

Defn: A device for raising water by the direct action of steam; a pulsometer.