HOP n.
Hop flea (Zoöl.), a small flea beetle (Haltica concinna), very injurious to hops. -- Hop fly (Zoöl.), an aphid (Phorodon humuli), very injurious to hop vines. -- Hop froth fly (Zoöl.), an hemipterous insect (Aphrophora interrupta), allied to the cockoo spits. It often does great damage to hop vines. -- Hop hornbeam…
HORN n. 2 definitions
he tough, fibrous material of which true horns are composed, being, in the Ox family, chiefly albuminous, with some phosphate of lime; also, any similar substance, as that which forms the hoof crust of horses, sheep, and cattle; as, a spoon of horn.
HORNET n.
. The American white- faced hornet (V. maculata) is larger and has similar habits. Hornet fly (Zoöl.), any dipterous insect of the genus Asilus, and allied genera, of which there are numerous species. They are large and fierce flies which capture bees and other insects, often larger than themselves, and suck their bloo…
HORSE n.
ge, coarse, commercial sponge (Spongia equina). -- Horse stinger (Zoöl.), a large dragon fly. [Prov. Eng.] -- Horse sugar (Bot.), a shrub of the southern part of the United States (Symplocos tinctoria), whose leaves are sweet, and good for fodder. -- Horse tick (Zoöl.), a winged, dipterous insect (Hippobosca equina),…
HYDROGEN n.
pecially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of val…