What does H stand for?

What does H mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: H.

We've found a total of 152 definitions for H:

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H

mustard gas

Medical » Laboratory

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H

Undistilled Sulfur Mustard gas (military designation)

Governmental » Military

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What does H mean?

hydrogen, H, atomic number 1(noun)
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

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"H." Abbreviations.com. STANDS4 LLC, 2016. Web. 7 Dec. 2016. <http://www.abbreviations.com/H>.