electromotive force (redirected from Electro-motive force)

force (fors) energy or power; that which originates or arrests motion. Symbol F.

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electromotive force  that which causes a flow of electricity from one place to another, giving rise to an electric current. Abbreviated EMF. Symbol E.

occlusal force  the force exerted on opposing teeth when the jaws are brought into approximation.

reserve force  energy above that required for normal functioning; in the heart, the power that will take care of the additional circulatory burden imposed by exertion.

van der Waals forces  the relatively weak, short-range forces of attraction existing between atoms and molecules and arising from brief shifts of orbital electrons; it results in the attraction of nonpolar organic compounds to each other.

vital force  the energy that characterizes a living organism; most systems of complementary medicine seek to affect or use it.

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e·lec·tro·mo·tive force (-lktr-mtv)

n. Abbr. EMF

The energy per unit charge that is reversibly converted from chemical or other forms of energy into electrical energy in a battery.

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electromotive force (EMF)

[-mō′tiv]

the electric potential, or ability of electric energy to perform work. EMF is usually measured in joules per coulomb, or volts. The higher the voltage, the greater the potential of electric energy. Any device, such as a storage battery, that converts some form of energy into electricity is a source of EMF.

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electromotive force,

n the ability of electrical energy to perform work, measured in volts or joules per coulomb.

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force,

n any application of energy, either internal or external to a structure; that which initiates, changes, or arrests motion.

force and stress,

n the pressure forcibly exerted on the teeth and on their investing and supporting tissues that is detrimental to tissue integrity. In occlusal trauma, the production of lesions of the attachment apparatus depends on an interrelationship of the strength, duration, and frequency of the application of the force.

force, centrifugal,

n a force that tends to recede from the center.

force, chewing,

n the degree of force applied by the muscles of mastication during the mastication of food.

force, component of,

n 1. one of the factors from which a resultant force may be compounded or into which it may be resolved.
2. one of the parts of a force into which it may be resolved.

force, condensing,

n 1. the force required to compress gold-foil pellets, facilitating their cohesion, to fabricate or build up a gold-foil restoration.
2. the force required to compact or condense a plastic material (e.g., amalgam, wax).

force, constant,

n a continuous force or pressure applied to the teeth.

force, counter-dislodgement,

n pressure that comes into play when food is evenly distributed in the oral cavity so that contact between the maxillary and mandibular teeth is equalized on both sides during mastication.

force, denture-dislodging,

n an influence that tends to displace a denture from its intended position on supporting structures.

force, denture-retaining,

n an influence that tends to maintain a denture in its intended position on its supporting structures.

force, electromotive,

n the difference in potential in a roentgen-ray tube between the cathode and anode; usually expressed in kilovolts.

force, intermittent,

n a force or pressure (applied to the teeth) that is alternated with a period of passiveness or rest.

force, line of,

n the direction of the power exerted on a body.

force, masticatory,

n the force applied by the muscles attached to the mandible during mastication.

force, occlusal (occlusal load),

n 1. the result of muscular forces applied on opposing teeth.
2. the force transmitted to the teeth and their supporting structures by tooth-to-tooth contact or through a bolus of food or other interposed substance.

force, shear,

n commonly employed as a calculation of the physical stress a material can bear, it refers to the type of force that is expressed parallel to the face of an object.

force, tensile,

n the type of force manifested in an extension of an object itself. A stretched rubber band is an example of tensile force.

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electromotive force

the force that, by reason of differences in potential, causes a flow of electricity from one place to another, giving rise to an electric current.