Hydrophite

( Min. ) A green mineral found at and pneumatikos , relating to wind.] Noting an apparatus consisting of a ve el of water, ., for collecting gases. Hy'dropsy, n. (Med.) Same as DROPSY, q. v. Hydrora'chis, Hydro rach i'tis, n. [Gr. hudor , and rachis , the spine.) ( Med .) A tumor upon the spine of infants; at first of a blue color, but afterwards becoming translucent; it is attended with paralysis of the lower limbs, and is usually fatal in its consequences. Hydro salt, n. (Chem.) A salt formed by the combination of a hydracid and a base. Hydroscope, n. [Gr. hudor , and skopeo , I view.] An instrument anciently used for measuring time by means of the flowing of water through a small orifice. It consisted of a cylindrical tube, conical at the bottom. The cylinder was graduated; and as the water trickled out at the apex of the cone, its surface became succe ively contiguous to the divisions marked on the cone, and thereby pointed out the hour.