# Distance

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## distance

1. Geometry
a. the length of the shortest line segment joining two points
b. the length along a straight line or curve
2. Horse racing
a. Brit a point on a racecourse 240 yards from the winning post
b. Brit any interval of more than 20 lengths between any two finishers in a race
c. US the part of a racecourse that a horse must reach in any heat before the winner passes the finishing line in order to qualify for later heats
3. go the distance Boxing to complete a bout without being knocked out
4. the distant parts of a picture, such as a landscape
5. middle distance
a. (in a picture) halfway between the foreground and the horizon
b. (in a natural situation) halfway between the observer and the horizon
6. Athletics relating to or denoting the longer races, usually those longer than a mile

## Distance

distance in depth between servicemen, guns, vehicles, and subunits or units (ships) when formed in ranks, on the march (cruise), or in combat formation and also between aircraft when flying in formation or in a combat formation.

## Distance

an important geometric concept whose meaning depends on the kind of entities for which it is defined. The distance between two points is the length of the line segment joining the points. The distance from a point to a line or a plane is the length of the perpendicular from this point to the line or plane. The distance between two parallel lines or planes is the length of a common perpendicular to the lines or planes. The distance between two nonintersecting nonparallel lines in space is equal to the distance between the parallel planes in which the lines lie—that is, the length of the line segment that joins the lines and is perpendicular to both.

## distance

[′dis·təns]
(mathematics)
A nonnegative number associated with pairs of geometric objects.
The spatial separation of two points, measured by the length of a hypothetical line joining them.
For two parallel lines, two skew lines, or two parallel planes, the length of a line joining the two objects and perpendicular to both.
For a point and a line or plane, the length of the perpendicular from the point to the line or plane.
(mechanics)
The spatial separation of two points, measured by the length of a hypothetical line joining them.
References in periodicals archive ?
Stadiums, for example, can eject fans on the basis that children come to sporting events and they, like anyone else within hearing distance, must be protected from offensive speech.
After initiating calls, apps can also be used to listen to conversations within hearing distance of a mobile device.
Stands away from field edges, on inside corners and adjacent to bedding cover often lie within hearing distance of your quarry.
And there are no maternity wards within hearing distance, which means this generation of young Cockneys could be the last.
Court chairman Emrys Williams told the defendant: "This offence was racially aggravated, in a public place with lots of children within hearing distance, and you were highly intoxicated with complete disregard to who you were insulting.
The device also activates a pager carried by the officer so that if he is not within hearing distance of his siren, he'll know the dogs need attention.
Or maybe those born within hearing distance of the call to prayer at Birmingham central mosque?
The communications device used two empty tin cans and a piece of string long enough to reach beyond normal hearing distance.
Finally reaching the bottom of the hill, we figured we might be within hearing distance of the bedded moose, so Steve and I took up shooting positions as Chris called from behind.
I just hope church bells all over Staffs and Lichfield ring out in respect to the memory of Michael Eccles as well on a regular basis and in hearing distance of the cells containing those two evil killers.
In fact, everyone within hearing distance caught that one, and a hearty laugh echoed through town.
If many dogs are awake in the area, the howling of one dog can set off howling replies from others within hearing distance.

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