ETYM Cf. Scot. and Dutch spat, Dan. spette, Swed. spott spittle, slaver; from the root of Eng. spit. Related to Spit to eject from the mouth, and cf. Spatter.
The diameter of the area on the target where the temperature determination is made. The spot is defined by the circular aperture at the target which allows typically 90% of the ir energy from the target to be collected by the instrument. See also Size-of-Source Effect.
1. A small contrasting part of something; SYN. speckle, dapple, patch, fleck, maculation.
2. A section of an entertainment that is assigned to a specific performer or performance.
3. A short section or illustration (as between radio or tv programs or in a magazine) that is often used for advertising.
4. A playing card with a specified number of pips on it to indicate its value.
5. A place for entertainment.
6. A mark on a playing card (shape depending on the suit); SYN. pip.
7. (British) A small quantity; SYN. bit.

1. To become spotted
2. To make a spot or mark onto; SYN. stain, fleck, blob, blot.
3. To mark with a spot or spots

1. being, originating, or done on the spot or in or for a particular spot; available for immediate delivery after sale; paid out upon delivery; involving immediate cash payment; broadcast between scheduled programs; originating in a local station for a national advertiser; performing occasionally when needed
2. Made at random or restricted to a few places or instances ; also; selected at random or as a sample

A “composite dot” produced through the halftone creation process on a PostScript printer that consists of a group of dots arranged in a pattern reflecting the gray level of a particular pixel. See also gray scale, halftone. Compare dot (definition 2).