The distance at which the airgun is sighted in at. Zero is a reference to the trajectory of the pellet. Example, if you sight in your gun at 40 yards, your Zero point is now 40 yards.

mechanical zero or electrical zero. (2) To place the measure point on a downhole logging tool at the depth datum and adjust the depth-meter to read zero depth.

More correctly "zero sight adjustment". That That adjustment of guns' sights that will place a properly aimed shot at the desired point of at some range with a given load, in the absence of wind. The basis from which subsequent sight adjustments are made.

adjust (an instrument or device) to zero value

The point from which the graduation of a scale, as of a thermometer, commences.

Fig.: The lowest point; the point of exhaustion; as, his patience had nearly reached zero.

In data processing, the number that when added to or subtracted from any other number does not alter the value of that other number. Zero may have different representations in computers such as positively or negatively signed zero and floating-point zero (in which the fixed-point part is zero while the exponent in the floating-point representation may vary).

the quantity that registers a reading of zero on a scale

1) n. See Blank. 2) v. To delete or destroy a piece of software. 3) v. To kill someone. 3) Midnight (From zero-hour.)

a valid entry to delete any spooled files created today

Zero is a fictional android in the Marvel Comics Universe. He first appeared in New Mutants as a member of the Mutant Liberation Front and was killed in Excalibur #80.

a constituent proposed in an analysis to represent an element held to be present at an abstract level but not realized in the data

In complex analysis, a zero of a holomorphic function f is a complex number a such that f(a) = 0.

A zero, in linguistics, is a constituent needed in an analysis but not realized in speech. It also means a lack of an element as opposed to other elements. It is usually written "Ø".

Mega Man X series and Mega Man Zero series of video games. In the X series, he is one of the highest ranking "Maverick Hunters" who is fighting to stop Sigma's forces of infected Reploids, known as mavericks, from exterminating humanity.

Tenchi Muyo! anime series.

"Zero" is the 14th episode of the first season of the WB original series, Smallville. The episode was written by Alfred Gough and Miles Millar and was directed by Michael Katleman. It originally aired on March 12, 2002.