shortwave

noun, adj, adv — 7 senses

shortwave

noun

UK /ˈʃɔːtweɪv/ · US /ˈʃoɹtˌweɪv/

Etymology The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.

1

Communications, Electrical engineering, Engineering, Natural sciences, Physical sciences, Physics, Telecommunications An electromagnetic wave with a relatively short wavelength; specifically, one with a wavelength generally between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz.

  • Shortwaves are longer than microwaves.
2

Climatology, Communications, Electrical engineering, Engineering, Meteorology, Natural sciences, Physical sciences, Physics, Telecommunications Downward radiation in the shortwave (noun sense 1) frequency range which enters the Earth's atmosphere.

  • Shortwave fadeout data for the period 1955 through 1969 were analyzed and correlated with solar flare data for the same period. […] Some doubt is cast on the quality of the shortwave fadeout data during the early part of the period considered.1973 June 28, Richard G. Hendl, Robert A. Skrivanek, “Abstract”, in Statistical Analysis of Shortwave Fadeout Occurrence for the Years 1955 to 1969 (Environmental Research Papers; no. 452), L. G. Hanscom Field, Bedford, Mass.: Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, →OCLC, page iv:
  • We often think of these surface radiative fluxes in terms of the two broad spectral bands that we have discussed before: shortwave fluxes and longwave fluxes. […] Blue parts of the shortwave radiance are more diffuse than are the red parts of that spectral band.1995 December, B. R. Barkstrom [et al.], “Empirical Estimates of Shortwave and Longwave Surface Radiation Budget involving CERES Measurements (Subsystem 4.6.0)”, in Clouds and the Earth’s Radiant Energy System (CERES) Algorithm Theoretical Basis Document (NASA Reference Publication; 1376), volumes III (Cloud Analyses and Determination of Improved Top of Atmosphere Fluxes (Subsystem 4)), Hampton, Va.: Langley Research Center, National Aeronautics and Space Administration, →OCLC, page 208:
1 more example
  • [O]nly about half of solar radiation reaching the Earth's atmosphere reaches Earth's surface. The sum of shortwave and longwave radiation reaching Earth's surface is global radiation.2012, Viliam Novák, “Evapotranspiration: A Component of the Water Cycle”, in Evapotranspiration in the Soil-Plant-Atmosphere System (Progress in Soil Science), Dordrecht, South Holland; Heidelberg, Baden-Württemberg: Springer, →DOI, →ISBN, page 11:
3

Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Physics, Radio, Telecommunications A waveband comprising radio waves in the shortwave (noun sense 1) frequency range, especially when used in broadcasting.

  • Many stations broadcast on shortwaves.
  • The fun of listening to shortwave while in a car or boat is diminished by spark-plug noise created while the engine is running.1972, Len Buckwalter, 99 Ways to Improve Your Shortwave Listening, Indianapolis, Ind.: H. W. Sams, →ISBN, page 90:
4

Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Physics, Radio, Telecommunications In full shortwave radio: a radio which is able to receive radio waves in the shortwave (noun sense 1) waveband.

  • Finally in all the crackle and noise of the short-wave one of our men made contact with another boat.1941, John Steinbeck, chapter I, in The Log from the Sea of Cortez […], New York, N.Y.: The Viking Press, published 1951, →OCLC, page 7:
Derived terms
ultrashortwave
Related terms
extremely low frequency, high frequency, super high frequency, ultra high frequency, ultra low frequency, very high frequency

shortwave

adj

Etymology The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.

1

Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Radio, Telecommunications Of a radio wave: having a wavelength of between 10 and 100 metres, corresponding to a frequency between 3 and 30 megahertz.

2

Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Radio, Telecommunications Of radio equipment: capable of receiving or transmitting radio signals at wavelengths in the above range.

Coordinate terms
longwave, mediumwave, microwave

shortwave

adv

Etymology The noun is derived from short (adjective) + wave (noun). The adjective is from an attributive use of the noun. The adverb is also derived from the noun.

1

Broadcasting, Communications, Electrical engineering, Engineering, Media, Natural sciences, Physical sciences, Radio, Telecommunications Using radio waves having wavelengths of between 10 and 100 metres, corresponding to frequencies between 3 and 30 megahertz.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.