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- English Word Hydrobilirubin Definition A body formed from bilirubin, identical with urobilin.
- English Word Hydrobranchiata Definition An extensive artificial division of gastropod mollusks, including those that breathe by gills, as contrasted with the Pulmonifera.
- English Word Hydrobromate Definition Same as Hydrobromide.
- English Word Hydrobromic Definition Composed of hydrogen and bromine; as, hydrobromic acid.
- English Word Hydrobromide Definition A compound of hydrobromic acid with a base; -- distinguished from a bromide, in which only the bromine unites with the base.
- English Word Hydrocarbon Definition A compound containing only hydrogen and carbon, as methane, benzene, etc.; also, by extension, any of their derivatives.
- English Word Hydrocarbonaceous Definition Of the nature, or containing, hydrocarbons.
- English Word Hydrocarbonate Definition A hydrocarbon.
- English Word Hydrocarbonate Definition A hydrous carbonate, as malachite.
- English Word Hydrocarbostyril Definition A white, crystalline, nitrogenous hydrocarbon, C9H9NO, obtained from certain derivatives of cinnamic acid and closely related to quinoline and carbostyril.
- English Word Hydrocarburet Definition Carbureted hydrogen; also, a hydrocarbon.
- English Word Hydrocauli Definition of Hydrocaulus
- English Word Hydrocaulus Definition The hollow stem of a hydroid, either simple or branched. See Illust. of Gymnoblastea and Hydroidea.
- English Word Hydrocele Definition A collection of serous fluid in the areolar texture of the scrotum or in the coverings, especially in the serous sac, investing the testicle or the spermatic cord; dropsy of the testicle.
- English Word Hydrocephalic Definition Relating to, or connected with, hydrocephalus, or dropsy of the brain.
- English Word Hydrocephaloid Definition Resembling hydrocephalus.
- English Word Hydrocephalous Definition Having hydrocephalus.
- English Word Hydrocephalus Definition An accumulation of liquid within the cavity of the cranium, especially within the ventricles of the brain; dropsy of the brain. It is due usually to tubercular meningitis. When it occurs in infancy, it often enlarges the head enormously.
- English Word Hydrochlorate Definition Same as Hydrochloride.
- English Word Hydrochloric Definition Pertaining to, or compounded of, chlorine and hydrogen gas; as, hydrochloric acid; chlorhydric.