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Total record count: 6269.

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Eng ID Term Definition
1941
free wave
See WAVE.
1942
freezing
See FROST.
1943
freezing point
Temperature of solidification of a liquid in given conditions.
1944
frequency
The number of VIBRATIONS or CYCLES in unit time.
1945
frequency: extremely high (EHF)
See FREQUENCY: RADIO.
1946
frequency: high (HF)
See FREQUENCY: RADIO.
1947
frequency: low (LF)
See FREQUENCY: RADIO.
1948
frequency: medium (MF)
See FREQUENCY: RADIO.
1949
frequency: natural
The lowest resonant FREQUENCY of a body or system.
1950
frequency: radio
Any FREQUENCY at which electromagnetic RADIATION of energy is useful for communication. Radio frequencies are usually classed as very low, b... more
Any FREQUENCY at which electromagnetic RADIATION of energy is useful for communication. Radio frequencies are usually classed as very low, below 30 kilohertz; low, 30-300 kilohertz; medium, 300-3,000 kilohertz; high, 3-30 MEGAHERTZ; very high, 30-300 MEGAHERTZ; ultra high, 300-3,000 MEGAHERTZ; super high, 3,000-30,000 MEGAHERTZ; extremely high, 30,000-300,000 MEGAHERTZ.
1951
frequency: resonant
Any FREQUENCY at which a body or system vibrates more readily.
1952
frequency: super high (SHF)
See FREQUENCY: RADIO.
1953
frequency: ultra high (UHF)
See FREQUENCY: RADIO.
1954
frequency: very high (VHF)
See FREQUENCY: RADIO.
1955
frequency: very low (VLF)
See FREQUENCY: RADIO.
1956
frequency band
See BAND OF FREQUENCY.
1957
frequency channel
See CHANNEL.
1958
frequency modulation
See MODULATION.
1959
frequency of soundings
See DENSITY OF SOUNDINGS.
1960
freshet
An area of compara­tively fresh water at or near the MOUTH of a STREAM flowing into the SEA. A FLOOD or overflowing of a RIVER caused by he... more
An area of compara­tively fresh water at or near the MOUTH of a STREAM flowing into the SEA. A FLOOD or overflowing of a RIVER caused by heavy RAINS or melted SNOW.