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A disorderly and tumultuous crowd; a mob; hence, the rabble; the herd of common people. the endless routs of wretched thralls. Spenser. The ringleader and head of all this rout. Shak. Nor do I name of men the common rout. Milton.

hed or poliched by friction against each other. rumble seat, a seat in the rear of an automobile, outside the passenger cabin, which folds out from the body

Any one of several species of elasmobranch fishes of the genus Pristis. They have a sharklike form, but are more nearly allied to the rays. The flattened and much elongated snout has a row of stout toothlike structures inserted along each edge, forming a sawlike organ with which it mutilates or kills its prey.…

An order of elasmobranchs including the sharks and rays; the Plagiostomi. Called also Selacha, Selache, and Selachoidei.

a spring, or an explosive gas), attached to an internal- combustion engine, as on an automobile, and used as a means of starting the engine without cranking it by hand.

Any one of numerous species of elasmobranch fishes of the order Plagiostomi, found in all seas.

Any one of numerous species of large, flat elasmobranch fishes of the genus Raia, having a long, slender tail, terminated by a small caudal fin. The pectoral fins, which are large and broad and united to the sides of the body and head, give a somewhat rhombic form to these fishes. The skin is more or less spinose.…

ombining forms from Gr. seed, sperm, semen (of plants or animals); as, spermatoblast, spermoblast.

Same as Spermoblast.

Same as Spermoblast.

masses in the seminal tubules. It divides into a mass (spermosphere) of small cells (spermoblast), which in turn give rise to spermatozoids.

A spermoblast. -- Sper`ma*to"al, a. Owen.

y the repeated division of a male germinal cell (spermospore), each constituent cell (spermoblast) of which is converted into a spermatozoid; a spermatogemma.

The male germinal or seminal cell, from the breaking up of which the spermoblasts are formed and ultimately the spermatozoids; a spermatospore. Balfour.

specified axis. go for a spin take a spin, take a trip in a wheeled vehicle, usu. an automobile.

A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft.

In certain Sporozoa, a small active, usually elongate, sickle- shaped or somewhat amoboid spore, esp. one of those produced by division of the passive spores into which the zygote divides. The sporozoites reproduce asexually.

The suborder of elasmobranch fishes which comprises the sharks.

esp. when the resistance to flow is the least possible; as, a streamline body for an automobile or airship.

To deprive of material mobility. [Obs.] It is not malleable; but yet is not fluent, but stupefied. Bacon.