n.
Pronunciation: ' pi ŋ - ə r
Function: noun
Date: 1957
: a device for producing pulses of sound (as for marking an underwater site or detecting an underwater object)
n.
Pronunciation: ' pi ŋ - ə r
Function: noun
Date: 1957
: a device for producing pulses of sound (as for marking an underwater site or detecting an underwater object)
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012