Also known as: std.
STD stands for various terms. Discover the full forms, meanings, and possible interpretations of STD across different fields and industries.
Saltness. The amount of dissolved salt in water. Usually expressed as a ratio as compared with fresh water fresh water being 1000 and sea water about 1026 but varying, in ports and harbours, between 1000 and 1031 (Port Said). Also known as the specific gravity of sea water.
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