a system for determining a position at sea by exploding a charge under water and measuring the time the shock waves take to reach three widely separated shore stations at known distances from each other.
Origin of sofar
1945–50; so(und) f(ixing) a(nd) r(anging)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a system for determining a position at sea, esp that of survivors of a disaster, by exploding a charge underwater at that point. The times taken for the shock waves to travel through the water to three widely separated shore stations are used to calculate their position
Word Origin for sofar
C20: from so (und) f (ixing) a (nd) r (anging)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012