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Eng ID Term Definition
3341
month: nodical
The interval of time between two suc­ces­sive passages of the MOON through the same NODE of its ORBIT. The length of the nodical month avera... more
The interval of time between two suc­ces­sive passages of the MOON through the same NODE of its ORBIT. The length of the nodical month averages 27.21222 mean SOLAR DAYS. Also called dracontic month.
3342
month: sidereal
The interval of time between two suc­ces­sive passages of the MOON past as FIXED STAR. The length of the sidereal month averages 27.321661 m... more
The interval of time between two suc­ces­sive passages of the MOON past as FIXED STAR. The length of the sidereal month averages 27.321661 mean SOLAR DAYS.
3343
month: synodical
The interval of time between two successive CONJUNCTIONS or OPPOSITIONS of the MOON. The length of the synodical month is 29.5305888 mean SO... more
The interval of time between two successive CONJUNCTIONS or OPPOSITIONS of the MOON. The length of the synodical month is 29.5305888 mean SOLAR DAYS. Also called lunation or lunar month.
3344
month: tropical
The average period of REVOLUTION of the MOON about the EARTH with respect to the VERNAL EQUIN­OX. The length of the tropical month averages ... more
The average period of REVOLUTION of the MOON about the EARTH with respect to the VERNAL EQUIN­OX. The length of the tropical month averages 27.3215­82 mean SOLAR DAYS.
3345
monument
(U.S. terminology). In SURVEYING, a structure used or erected to mark the POSITION of a STATION; permanence is implied.
3346
moon
The SATELLITE of the EARTH. See LIBRATIONS OF MOON and PHASES OF THE MOON.
3347
moonbow
RAINBOW whose formation is the same as that of the ordinary RAINBOW, but whose light comes from the MOON and not from the SUN. Also called l... more
RAINBOW whose formation is the same as that of the ordinary RAINBOW, but whose light comes from the MOON and not from the SUN. Also called lunar rainbow.
3348
moor
(v.t.). To secure a boat or other floating thing to a fixed object or the seabottom.
3349
mooring
A place where a vessel may be secured. (Usually in pl.) The equipment used to secure a ves­sel. The process of securing a vessel or oceanogr... more
A place where a vessel may be secured. (Usually in pl.) The equipment used to secure a ves­sel. The process of securing a vessel or oceanographic instruments other than anchoring with a single anchor.
3350
mooring buoy
See BUOY.
3351
morse code light
See LIGHT.
3352
mosaic
In PHOTOGRAMMETRY, as assembly of AERIAL PHOTO­GRAPHS whose edges usually have been torn, or cut, and matched to form a continuous photograp... more
In PHOTOGRAMMETRY, as assembly of AERIAL PHOTO­GRAPHS whose edges usually have been torn, or cut, and matched to form a continuous photographic representa­tion of a portion of the EARTH's surface.
3353
mosaic: controlled
A MOSAIC oriented and scaled to horizontal GROUND CONTROL; usually assembled from rectified PHOTOGRAPHS. See also ORTHOPHOTOMOS­AIC, UNCONTR... more
A MOSAIC oriented and scaled to horizontal GROUND CONTROL; usually assembled from rectified PHOTOGRAPHS. See also ORTHOPHOTOMOS­AIC, UNCONTROLLED MOSAIC.
3354
most probable value
That value of a quantity which is mathemati­cally determined from a series of observa­tions and is more probably free of the effects of blun... more
That value of a quantity which is mathemati­cally determined from a series of observa­tions and is more probably free of the effects of blunders and errors than any other value that might stem from the same series of observations.
3355
mother vessel
The lead vessel when surveying with several vessels.
3356
mount
A large HILL or MOUNTAIN, usually a detached, characteris­tical­ly conical mass of earth. The term 'mount' is always used instead of MOUNTAI... more
A large HILL or MOUNTAIN, usually a detached, characteris­tical­ly conical mass of earth. The term 'mount' is always used instead of MOUNTAIN when it precedes a proper name.
3357
mountain
A natural ELEVA­TION of the EARTH's surface rising more or less abruptly from the surrounding LEVEL, and attaining an ALTITUDE which, relati... more
A natural ELEVA­TION of the EARTH's surface rising more or less abruptly from the surrounding LEVEL, and attaining an ALTITUDE which, relative­ly to adjacent ELEVATIONS, is impressive or notable.
3358
mountains
On the seafloor, a well-delineated subdivi­sion of a large and complex positive feature. See CORDILLERA.
3359
mountain chain
A complexity of several MOUNTAIN RAN­GES.
3360
mountain range
A line of MOUNTAINS. Also referred to as range of mountains.