[ping.er] n (1957): a device for producing pulses of sound (as for marking an underwater site or detecting an underwater object)
PINGER
Meaning of PINGER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012
[ping.er] n (1957): a device for producing pulses of sound (as for marking an underwater site or detecting an underwater object)
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012