What does HA stand for?

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

We've found a total of 108 definitions for HA:

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HA

Hydrogen Alpha

Miscellaneous » Unclassified

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HA

hydroxyapatite

Medical » British Medicine

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HA

hyperactivity

Medical » British Medicine

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HA

hyperaldosteronism

Medical » British Medicine

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HA

Hyperallergenic And

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HA

Hyrulian Army

Miscellaneous » Unclassified

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HA

The Hermitian Adjoint

Miscellaneous » Unclassified

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HA

The Hermitian Arxiv

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What does HA mean?

hour angle, HA(noun)
(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day

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"HA." Abbreviations.com. STANDS4 LLC, 2015. Web. 30 Jun 2015. <http://www.abbreviations.com/HA>.