Fusion: The change of state from a solid to a liquid at the same temperature. The heat of fusion is the number of gram calories of heat necessary to change one gram of a substance from the solid to the liquid state. It is the opposite of freezing.

 

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Fusion: The change of state from a solid to a liquid at the same temperature. The heat of fusion is the number of gram calories of heat necessary to change one gram of a substance from the solid to . . . View Full Definition

Enthalpy Of Fusion: The change in enthalpy when one mole of solid melts to form one mole of liquid. Enthalpies of fusion are always positive because melting involves overcoming some of the intermolecular attrac . . . View Full Definition

Diffusion Rate: The number of randomly moving molecules that pass through a unit area per second. Diffusion rates are fastest when a large concentration difference exists on either side of the unit area. Di . . . View Full Definition

Nuclear Fusion: Combination of two smaller nuclei to form a larger nucleus. The larger nucleus has higher binding energy per nucleon than the original nuclei, and fusion results in the release of energy.

Coldfusion Hosting: Web hosting that supports coldfusion, a web application language introduced by Allaire and currently owned by Macromedia.

Diffusion Condenser Enlarger: Enlarger that combines diffuse light with a condenser system, producing more contrast and sharper detail than a diffusion enlarger but less contrast than a condenser enlarger.

Acceptable Circle Of Confusion: The size of the largest circle which the eye cannot distinguish from a dot. In 35mm format cameras, a 0.03mm diameter circle of confusion is considered acceptable. It is used to calculate de . . . View Full Definition

Diffusion: The scattering of sound. Diffusion reduces the ability of a listener to pinpoint the actual location of a speaker, a useful quality in surround speakers. Diffuse surrounds create a wraparoun . . . View Full Definition

Infusion: The process of extracting elements from tea, herbs, fruits or berries by submersing in boiling water. This process is often used for obtaining medicinal properties from herbs.

Infusion Therapy: Treatment accomplished by placing therapeutic agents into the vein, including intravenous feeding. Such therapy also includes enteral nutrition, which is the delivery of nutrients into the g . . . View Full Definition