- 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. 2018
- 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
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