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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The great circle on the Earth's surface that is everywhere equally distant from the two poles and whose plane is perpendicular to the Earth's axis of rotation, that divides the Earth's surface into the northern and southern hemispheres, and that is the line from which latitudes are reckoned, its own latitude being everywhere zero degrees.  2, record 1, English, - equator

Record number: 1, Textual support number: 1 OBS

It is the largest of the parallels of latitude, having a length on the Earth’s surface of 40,075.76 km ...  2, record 1, English, - equator

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Grand cercle d'une sphère dont le plan est perpendiculaire à la ligne des pôles.  3, record 1, French, - %C3%A9quateur

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Círculo máximo de la esfera celeste [...].  2, record 1, Spanish, - ecuador

Record number: 1, Textual support number: 1 CONT

En razón del achatamiento del globo terrestre, el ecuador es el mayor de todos los círculos máximos del planeta. El ecuador terrestre sirve de fundamento para definir las coordenadas geográficas: la latitud y la longitud.  2, record 1, Spanish, - ecuador

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The shortest line between two points on a mathematically derived surface(as a straight line on a plane or an arc of a great circle on a sphere).  2, record 2, English, - geodesic

Record number: 2, Textual support number: 1 CONT

Geodesics on a sphere are great circles; in the plane with the Euclidean metric they are straight lines.  3, record 2, English, - geodesic

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Dans l'espace euclidien, les géodésiques d'une sphère sont des arcs de grand cercle.  3, record 2, French, - g%C3%A9od%C3%A9sique

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Línea, en una superficie, que determina el camino más corto entre dos puntos de la misma.  1, record 2, Spanish, - l%C3%ADnea%20geod%C3%A9sica

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A line on the earth's surface approximating a great circle passing through the north and south magnetic poles.  2, record 3, English, - magnetic%20meridian

Record number: 3, Textual support number: 1 CONT

Magnetic meridians are meridians that are parallel to the directions taken by freely moving magnetized needles, as in a compass.  3, record 3, English, - magnetic%20meridian

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Plan vertical, défini par la verticale du lieu et la direction du champ magnétique terrestre en ce lieu, donné par la position de l'aiguille aimantée.  2, record 3, French, - m%C3%A9ridien%20magn%C3%A9tique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The angle between a great circle(orthodromic) bearing and a rhumb line(loxodromic) bearing of a point, measured at a common origin.  1, record 4, English, - conversion%20angle

Record number: 4, Textual support number: 1 OBS

conversion angle: term and definition standardized by NATO.  2, record 4, English, - conversion%20angle

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Angle compris entre les relèvements orthodromiques et loxodromiques d'un point à partir d'une même origine.  1, record 4, French, - angle%20de%20conversion

Record number: 4, Textual support number: 1 OBS

angle de conversion : terme et définition normalisés par l'OTAN.  2, record 4, French, - angle%20de%20conversion

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Angulo comprendido entre los levantamientos ortodrómico y loxodrómico de un punto, medidos desde el mismo origen.  1, record 4, Spanish, - %C3%A1ngulo%20de%20conversi%C3%B3n

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

[The astronomic horizon is] A great circle on the celestial sphere formed by the intersection of the celestial sphere and a plane passing through any point(such as the eye of the observer) and perpendicular to the zenith-nadir line; the plane that passes through the observer's eye and is perpendicular to the zenith at that point.  1, record 5, English, - astronomic%20horizon

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Le grand cercle de la sphère céleste (...) dont le plan est perpendiculaire à la verticale s'appelle "horizon astronomique" ou "rationnel".  1, record 5, French, - horizon%20astronomique

Record 5,  Textual support,  Spanish