Crossword Genius

Sodium chloride (4)

Ross

I believe the answer is:

salt

'sodium chloride' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for salt that I've seen before include "Mariner; sodium chloride" , "Crystalline substance used to season food" , "Wit; sodium chloride" , "Common substance" , "Sea dog" .)

I've seen this clue in the Sydney Morning Herald, The Times and The Independent.
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