cardinal point

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cardinal point

[′kärd·nəl ¦pȯint]
(geodesy)
Any of the four principal directions: north, east, south, or west of a compass.
(optics)
Any one of six points in an optical system, namely, the two principal points, two nodal points, and two focal points. Also known as Gauss point.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Mean numbers ([+ or -] SE) of Ophraella communa eggs and adults at various cardinal directions from the center of each plot on common ragweed plants in the concentric bands.
According to Frank, the O tile is considered a neutral zone, because in this tile, the relative cardinal direction between two regions cannot be determined due to their proximity.
Street mapping provides a position in space with a cardinal direction, the street the traveler is walking on, and the nearest civic number.
(30) shar "East" is the past stem of 'char "arise" and indicates therefore succinctly "the cardinal direction in which the sun rises (or: has risen)." (31) nub "West" is the plain verb stem nub "go down, set" and indicates therefore succinctly "the cardinal direction in which the sun goes down" For lho "South" Simon has recently provided a very shrewd and impressive explanation in which he points out a relationship with
Analysis of variance models were used to test for differences in means due to sites, years, and cardinal direction and distance from the site tree, as well as interactions among these factors.
Marking the cardinal direction of south in the facility is a skylight.
For example, spiders are relatively restricted in their movements and can move only one space in a cardinal direction (N, S, E, W) at a time.
If the compass direction is a cardinal direction (N, E, S, or W), then translate to ([0 or 360], 90, 180, or 270).
Cardinal direction of flowers did not significantly affect the numbers of thrips.