An Etymological Dictionary of Astronomy and Astrophysics

An electromagnetic radio wave having wavelengths between 10 cm and 1m, corresponding to a frequency between 300 and 3,000 Mega Hertz. It is naturally emitted by various astronomical objects.

Etymology (EN): Decimetric, from → deci- + from Fr. métrique, → metric; → wave.

Etymology (PE): Mowj, → wave; desimetri, from décimétrique, as above.