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Eng ID Term Definition
1861
floating ice
Any form of ICE found floating in water.
1862
floating mark
In PHOTOGRAM­METRY, a mark seen as occu­pying a position in the three-dimensional space formed by the STEREOSCOPIC FUSION of a pair of PHOTO... more
In PHOTOGRAM­METRY, a mark seen as occu­pying a position in the three-dimensional space formed by the STEREOSCOPIC FUSION of a pair of PHOTO­GRAPHS and used as a refe­rence mark in examining or measu­ring the STEREOSCOPIC MODEL.
1863
floating point
In computer systems the type of numeric data approximately representing real numbers. A floa­ting point number is composed of an exponent an... more
In computer systems the type of numeric data approximately representing real numbers. A floa­ting point number is composed of an exponent and a mantissa specifying the numerical value relative to the exponent. Owing to the limited length of a compu­ter WORD, the floating point representation may cause a loss of precision.
1864
floating triangulation
See TRIANGULATION.
1865
float-off
(British terminology). The paper of a FIELD BOARD when detached from the board on completion of the work for which the FIELD BOARD was prep... more
(British terminology). The paper of a FIELD BOARD when detached from the board on completion of the work for which the FIELD BOARD was prepared.
1866
float well
A vertical pipe or box with a relatively small opening in the bottom, used to enclose the float of a tide gauge so the float will be little ... more
A vertical pipe or box with a relatively small opening in the bottom, used to enclose the float of a tide gauge so the float will be little affected by nontidal motions of the water. Synonymous with stilling well.
1867
floe (or ice floe)
A piece of SEA ICE other than FAST ICE. Floes over 10 km across are described as vast; those between 1 and 10 km across as big; those betwee... more
A piece of SEA ICE other than FAST ICE. Floes over 10 km across are described as vast; those between 1 and 10 km across as big; those between 200 and 1,000 m across as medium; those between 10 and 200 m across as small. Floes less than 10 m across are called ICE CAKES.
1868
flood
The FLOOD STREAM. Sometimes the term 'flood' is also used with reference to vertical tidal movement. The opposite is EBB. An overflowing of ... more
The FLOOD STREAM. Sometimes the term 'flood' is also used with reference to vertical tidal movement. The opposite is EBB. An overflowing of water on LAND usually dry; inund­ati­on.
1869
flood current
See FLOOD STREAM.
1870
flood stream
The horizontal movement of water asso­ciated with the RISING TIDE. Flood streams generally set toward the SHORE, or in the direc­tion of the... more
The horizontal movement of water asso­ciated with the RISING TIDE. Flood streams generally set toward the SHORE, or in the direc­tion of the tide progression. Also called FLOOD,flood currentoringoing stream.
1871
flood tide
See TIDE: RISING.
1872
flotsam
See JETTISON.
1873
flow
The motion charac­teristic of a fluid.
1874
flume
An inclined CHANNEL for conveying water from a di­stance to be utilized for power, transportation, irrigation, etc.
1875
fluorescence
Emission of light or other RADIANT ENERGY as a result of and only during absorption of RADIATION from some other source. See LUMINESCENCE an... more
Emission of light or other RADIANT ENERGY as a result of and only during absorption of RADIATION from some other source. See LUMINESCENCE and PHOS­PHORESCENCE.
1876
flux: luminous
Quantity, characteristic of RADIANT FLUX which expresses its capacity to produce a lumino­us sensation.
1877
flux: radiant
Power emitted, transferred or received in the form of RADIATION.
1878
flux-gate magnetometer
See MAGNETOMETER.
1879
f-number
See APERTURE: RELATIVE.
1880
foam line
The front of a WAVE as it advances shore­ward, after it has broken.