ˈes- noun
Usage: usually capitalized S
Etymology: S , military code letter
: a radio frequency band that lies between 1550 and 5200 megahertz and is used especially for aircraft and spacecraft communication and for radar transmission
ˈes- noun
Usage: usually capitalized S
Etymology: S , military code letter
: a radio frequency band that lies between 1550 and 5200 megahertz and is used especially for aircraft and spacecraft communication and for radar transmission
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012