
1) Old Mazda model
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https://www.crosswordclues.com/clue/glc

Greater London Council
Found on
http://www.educationengland.org.uk/history/glossary.html

<abbreviation> Gas-liquid chromatography. ... Symbols for the radicals of d-glucose, gluconic and glucuronic acid, glucosamine, N-acetylglucosamine, and glucuronic acid, respectively. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

Type: Abbreviation Definitions: 1. Abbreviation for gas-liquid chromatography.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=37422

Type: Symbol Definitions: 1. Symbols for the radicals of d-glucose, gluconic and glucuronic acid, glucosamine, N-acetylglucosamine, and glucuronic acid, respectively.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=37423

Glasgow Central (station code)
Found on
http://www.scot-rail.co.uk/page/Glossary
No exact match found.