(n.) Sodium hyposulphite, or thiosulphate, a solution of which is used as a bath to wash out the unchanged silver salts in a picture.
hypo-
A prefix signifying a less quantity, or a low state or degree, of that denoted by the word with which it is joined, or position under or beneath.
A prefix denoting that the element to the name of which it is prefixed enters with a low valence, or in a low state of oxidization, usually the lowest, into the compounds indicated
as, hyposulphurous acid.
hypoaria
(pl. ) of Hypoarion
hypoarian
(a.) Of or pertaining to a hypoarion.
hypoarion
(n.) An oval lobe beneath each of the optic lobes in many fishes
one of the inferior lobes.
hypoblast
(n.) The inner or lower layer of the blastoderm
-- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm.