sofar

[ soh-fahr ]
/ ˈsoʊ fɑr /

noun

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.

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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. 2020

British Dictionary definitions for sofar

sofar
/ (ˈsəʊfɑː) /

noun

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

Idioms and Phrases with sofar

so far

Also, thus far. Up to this point, as in So far we haven't seen him in the crowd, or They've made very little progress on their report thus far. [c. 1300]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.