[ef too] /ˈɛf ˈtu/
See under .
the highest of the radio-reflective ionospheric layers, beginning at an altitude of about 80 miles (130 km) and consisting of two parts, the lower part (F layer) being detectable in the daytime only, the higher (F layer or Appleton layer) being constant and constituting the ionospheric layer most favorable for long-range radio communication.
See F region.
A portable Forth system for Motorola 680×0 computers by Joerg Plewe . Ported to Atari ST, Atari TT, Amiga, Sinclair QL and OS9. Easily ported to Motorola 68000 based systems. (ftp://archive.umich.edu/atari/Languages/). (1992-12-14)
[fah] /fɑ/ noun, Music. 1. the syllable used for the fourth tone of a diatonic scale. 2. (in the fixed system of solmization) the tone F. Compare (def 1). [fah] /fɑ/ noun 1. the twentieth letter of the Arabic alphabet. /fɑː/ noun 1. (music) a variant spelling of fah abbreviation 1. (military) field artillery 2. […]
abbreviation 1. fanny adams
U.S. Government. 1. Federal Aviation Administration: the division of the Department of Transportation that inspects and rates civilian aircraft and pilots, enforces the rules of air safety, and installs and maintains air-navigation and traffic-control facilities. /fɔː/ verb 1. a Scot word for fall abbreviation 1. Fleet Air Arm 2. (in the US) Federal Aviation Administration […]