Related Words

Spam Filter: Systems that watch for spam and block it before it can hit the inbox. Spam filters can be complaint or content based.

Panchromatic Vision Filter: Filter through which the subject can be viewed approximately as it would appear in monochrome as recorded by a panchromatic emulsion.

Oil Filter: An Oil Filter filters the oil in the engine. Changing the oil and oil filter is one task that many riders do for themselves. Consult your owner's manual for recommended intervals and oil wei . . . View Full Definition

Polarizing Filter: Colorless gray filter made from stressed glass. Polarizing filters are used over light sources or camera lenses to reduce or remove specular reflection from certain types of surfaces.

Portafilter: In espresso brewing , a metal object with plastic handle that holds the coffee filter, and clamps onto the group.

Search Engine Spam: Pages created to cause search engines to deliver inappropriate or less relevant results. Search Engine Optimizers are sometimes unfairly perceived as search engine Spammers. Of course in som . . . View Full Definition

Notch Filter: A special type of cut-only equalizer used to attenuate ( no boosting ) a narrow band of frequencies. Three controls: frequency, bandwidth and depth, determine the notch. Simplified units pro . . . View Full Definition

Neutral Density Filter: Describes a gray camera filter which has an equal opacity to all the colors of the spectrum and so does not affect the colors in the final image. It is used to reduce the amount of light ent . . . View Full Definition

Heat Filter: Optical attachment made of thick infrared absorbing glass, used to absorb heat radiation from alight source without diminishing output.

Automatic Filter-Drip Coffee Makers: Coffee brewers that automatically heat and measure water into a filter and filter receptacle containing the ground coffee.