|fōnō+ noun
Etymology: phon- + telemeter
: a device for estimating the distance of firearms in action by measuring the interval between the flash and the arrival of the sound from the discharge
|fōnō+ noun
Etymology: phon- + telemeter
: a device for estimating the distance of firearms in action by measuring the interval between the flash and the arrival of the sound from the discharge
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012