blank (redirected from drew a blank)

blank

1. a plate or plug used to seal an aperture

2. a piece of material prepared for stamping, punching, forging, etc

3. Archery the white spot in the centre of a target

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blank [blaŋk]

(analytical chemistry)

In a chemical analysis, the measured value that is obtained in the absence of a specified component of a sample and that reflects contamination from sources external to the component; it is deducted from the value obtained when the test is performed with the specified component present. Also known as analytical blank.

(design engineering)

bit blank

(electronics)

To cut off the electron beam of a television picture tube, camera tube, or cathode-ray oscilloscope tube during the process of retrace by applying a rectangular pulse voltage to the grid or cathode during each retrace interval. Also known as beam blank.

(engineering)

The result of the final cutting operation on a natural crystal.

blind

(metallurgy)

A semifinished piece of metal to be stamped or forged into a tool or implement.

A semifinished, pressed, compacted mass of powdered metal.

Metal sheet prepared for a forming operation.

(ordnance)

Ammunition which contains no projectile but which does contain a charge of low explosive, such as black powder, to produce a noise.