Hyaline: vitreous: transparent or partially so.
Hyaloplasm: the clear, semi-fluid material between the meshes of the cell reticulum.
Hybrid: the progeny from the mating of two species.
Hydradephaga; -ous: applied to aquatic, predatory pentamerous beetles with filiform antennae: see adephagous.
Hydro: relating to water: a combining form used as a prefix.
Hydrolysis: the chemical decomposition of a compound by water, causing formation of a new compound.
Hydrophilous: applied to species living in low, damp places.
Hymen: a thin plane membrane serving as a partition.
Hymenoptera: membrane-winged: an ordinal term applied to insects with four membranous wings with few veins, the anterior usually larger than the posterior; mouth mandibulate; head free; thorax agglutinate, transformations complete.
Hyoid: having the form of the Greek upsilon, Y