Defn: Having such a structure as to be diaphanous when moist, and opaque when dry.
HYGROPHTHALMIC
Hy`groph*thal"mic, a. Etym: [Gr. ophthalmic.] (Anat.)
Defn: Serving to moisten the eye; — sometimes applied to the lachrymal ducts.
HYGROPLASM
Hy"gro*plasm, n. Etym: [Gr. (Biol.)
Defn: The fluid portion of the cell protoplasm, in opposition to stereoplasm, the solid or insoluble portion. The latter is supposed to be partly nutritive and partly composed of idioplasm.
HYGROSCOPE
Hy"gro*scope, n. Etym: [Gr. -scope: cf. F. hygroscope.] (Physics)
Defn: An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount.
HYGROSCOPIC
Hy`gro*scop"ic, a. Etym: [Cf. F. hygroscopique.]
1. Of or pertaining to, or indicated by, the hygroscope; not readily manifest to the senses, but capable of detection by the hygroscope; as, glass is often covered with a film of hygroscopic moisture.
2. Having the property of readily inbibing moisture from the atmosphere, or of the becoming coated with a thin film of moisture, as glass, etc.