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An imposition under fair pretenses; something contrived in order to deceive and mislead; a trick by cajolery; a hoax.

The male head of a household; one who orders the economy of a family. [Obs.]

An order of vitreous sponges, having glassy six-rayed, siliceous spicules; -- called also Hexactinellinæ.

to which the ends of the pipes from the retorts dip, for passing the gas through water in order to remove ammonia. -- Hydraulic mining, a system of mining in which the force of a jet of water is used to wash down a bank of gold-bearing gravel or earth. [Pacific Coast] -- Hydraulic press, a hydrostatic press. See under…

An extensive order of Hydrozoa or Acalephæ. [Written also Hydroida.]

A variety of potash mica containing water. It is less elastic than ordinary muscovite. Hydromica schist (Min.), a mica schist characterized by the presence of hydromica. It often has a silky luster and almost soapy feel.

An extensive order of insects, including the bees, ants, ichneumons, sawflies, etc.

A figurative construction, changing or inverting the natural order of words or clauses; as, "echoed the hills" for "the hills echoed." With a violent hyperbaton to transpose the text. Milton.

A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface. Hyperboloid of revolution, an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, bu…

Hence, anything exceeding the ordinary standard. When a man rises beyond six foot, he is an hypermeter. Addison.

. Hypermetrical verse (Gr. & Lat. Pros.), a verse which contains a syllable more than the ordinary measure.

An order of marsipobranchs including the lampreys. The suckerlike moth contains numerous teeth; the nasal opening is in the middle of the head above, but it does not connect with the mouth. See Cyclostoma, and Lamprey.

An order of marsipobranchs, including the Myxine or hagfish and the genus Bdellostoma. They have barbels around the mouth, one tooth on the plate, and a communication between tionnasal aperture and the throat. See Hagfish. [Written also Hyperotreti.]

ake against the argument, or in favor of the opposite side, each of them being refuted in order.

A supposition; a proposition or principle which is supposed or taken for granted, in order to draw a conclusion or inference for proof of the point in question; something not proved, but assumed for the purpose of argument, or to account for a fact or an occurrence; as, the hypothesis that head winds detain an overdue…

An order of small hoofed mammals, comprising the single living genus Hyrax.

Any animal of the genus Hyrax, of which about four species are known. They constitute the order Hyracoidea. The best known species are the daman (H. Syriacus) of Palestine, and the klipdas (H. capensis) of South Africa. Other species are H. arboreus and H. Sylvestris, the former from Southern, and the latter from Weste…

A figure by which the ordinary course of thought is inverted in expression, and the last put first; -- called also hysteron proteron.

A figure in which the natural order of sense is reversed; hysterology; as, valet atque vivit, "he is well and lives."

sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormæ.