Master of Science in Linguistics.
Also m.s.l. mean sea level.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for msl
Other solar-system exploration programs, such as the next mission to the outer planets, are being slashed to pay for MSL.
The James Webb Space Telescope (JWST) is subject to the same cost overruns that plagued the MSL.
British Dictionary definitions for msl
mean sea level
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