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The principal or most important spring in a piece of mechanism, especially the moving spring of a watch or clock or the spring in a gunlock which impels the hammer. Hence: The chief or most powerful motive; the efficient cause of action.

Hence: Measured and regular advance or movement, like that of soldiers moving in order; stately or deliberate walk; steady onward movement. With solemn march Goes slow and stately by them. Shak. This happens merely because men will not bide their time, but will insist on precipitating the march of affairs. Buckle.…

ut an item in an account. -- To mark time (Mil.), to keep the time of a marching step by moving the legs alternately without advancing.

e given you every herb bearing seed, . . . to you it shall be for meat. Gen. i. 29. Every moving thing that liveth shall be meat for you. Gen. ix. 3.

euvers (Mil.), the application of mechanical appliances to the mounting, dismounting, and moving of artillery. Farrow. -- Mechanical philosophy, the principles of mechanics applied to the inverstigation of physical phenomena. -- Mechanical powers, certain simple instruments, such as the lever and its modifications (t…

That branch of science which treats of moving machines.

A small body moving through space, or revolving about the sun, which on entering the earth's atmosphere would be deflagrated and appear as a meteor. These bodies [small, solid bodies] before they come into the air, I call meteoroids. H. A. Newton.

f engraving on copper or steel by drawing upon a surface previously roughened, and then removing the roughness in places by scraping, burnishing, etc., so as to produce the requisite light and shade. Also, an engraving so produced.

Removing regularly or occasionally from one region or climate to another; as, migratory birds.

A writ for removing records from one court to another. Brande & C.

Characterized by an extreme degree of fluidity; moving or flowing with great freedom; as, benzine and mercury are mobile liquids; -- opposed to viscous, viscoidal, or oily.

ns involved in its construction; the relation between the work done upon a machine by the moving power, and that yielded at the working points, either constantly, if its motion be uniform, or in the interval of time which it occupies in passing from any given velocity to the same velocity again, if its motion be variab…

The quantity of motion in a moving body, being always proportioned to the quantity of matter multiplied into the velocity; impetus.

The act of moving; motion. [Obs.]

A moving picture.

That which incites to action; anything prompting or exciting to choise, or moving the will; cause; reason; inducement; object. By motive, I mean the whole of that which moves, excites, or invites the mind to volition, whether that be one thing singly, or many things conjunctively. J. Edwards.

The power of moving or producing motion.

peaking telephone, depending on the fact that the friction between a metallic point and a moving cylinder of moistened chalk, or a moving slip of paper, on which it rests is diminished by the passage of a current between the point and the moving surface. -- Mo`to*graph"ic (#), a.

A prime mover; a machine by means of which a source of power, as steam, moving water, electricity, etc., is made available for doing mechanical work.

The act of moving; a movement.