HYGIENIST
Hy"gi*en*ist, n.
Defn: One versed in hygiene.
HYGIOLOGY
Hy`gi*ol"o*gy, n. Etym: [Gr. -logy.]
Defn: A treatise on, or the science of, the preservation of health.
[R.]
HYGRINE
Hy"grine, n. Etym: [From Gr. (Chem.)
Defn: An alkaloid associated with cocaine in coca leaves (Erythroxylon coca), and extracted as a thick, yellow oil, having a pungent taste and odor.
HYGRODEIK
Hy"gro*deik, n. Etym: [Gr. (Physics)
Defn: A form of hygrometer having wet and dry bulb thermometers, with an adjustable index showing directly the percentage of moisture in the air, etc.
HYGROGRAPH
Hy"gro*graph, n. Etym: [Gr. -graph.] (Physics)
Defn: An instrument for recording automatically the variations of the humidity of the atmosphere.