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exciting muscle fibers to contraction, by artificial stimulation; as, the irritation of a motor nerve by electricity; also, the condition of a muscle and nerve, under such stimulation.

ied esp. to the spinal cord, because it is capable of conveying doth voluntary and reflex motor impulses, without itself being affected by motor impulses applied to it directly.

Moving or causing motion; motory; active, as opposed to latent. Kinetic energy. See Energy, n. 4.

ndividual instruction, the very early development of writing, and an extended sensory and motor training (with special emphasis on vision, touch, perception of movement, and their interconnections), mediated by a patented, standardized system of "didactic apparatus," which is declared to be "auto-regulative." Most of t…

al agent, as water, steam, wind, electricity, etc., used to impart motion to machinery; a motor; a mover.

A person or thing that imparts motion, or causes change of place; a motor.

A promotory or headland.

to two or more currents differing in phase. It is used in starting single-phase induction motors.

ius) as a white amorphous or crystalline substance which has a peculiar effect on the vasomotor system.

A machine acted upon by an animal, and serving as a motor to drive other machinery; as, a dog power.

ccurring before the symptom ataxia has developed; -- applied to the early symptoms of locomotor ataxia.

o an increase of pressure; as, pressor nerve fibers, stimulation of which excites the vasomotor center, thus causing a stronger contraction of the arteries and consequently an increase of the arterial blood pressure; -- opposed to depressor. Landois & Stirling.

time (Physiol.), the time required for the mind to transform a sensory impression into a motor impulse. It is an important part of physiological or reaction time. See under Reaction.

and. -- Recurrent sensibility (Physiol.), the sensibility manifested by the anterior, or motor, roots of the spinal cord (their stimulation causing pain) owing to the presence of sensory fibers from the corresponding sensory or posterior roots.

lls into action certain muscles, organs, or cells. -- Reflex nerve (Physiol.), an excito-motory nerve. See Exito- motory.

A kind of motor speed controller permitting of very gradual variation in speed and of reverse. It is especially suitable for use with motor driven machine tools.

An armature for a dynamo or motor having the conductors wound on a ring.

The rotating part of a generator or motor.

Boring; piercing; -- applied to certain kinds of pain, especially to those of locomotor ataxia.

the conducting circuit of an electrical apparatus, as an inductorium, dynamo, or electric motor, usually provided with binding screws for the attachment of wires by which a current may be conveyed into or from the machine; a pole.