Blk. definitions

Blk.

[water] Blk. is an American brand of bottled mineral-water (beverage) containing fulvic acid, which makes the liquid appear black in colour. It contains more than 60 different types of minerals. ...
Found on http://en.wikipedia.org/wiki/Blk._(water)

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blk.

black. · block. · bulk.
Found on https://www.infoplease.com/dictionary/blk

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