Hh

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English

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Etymology 1

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Initialism of Hedgehog; the gene and the signaling pathway are named after the protein.

Proper noun

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Hh

  1. (biology) A protein expressed in the larva of the fruit fly Drosophila melanogaster, required for the proper development of the larval body.
    1. The gene coding for the Hh (Hedgehog) protein.
    2. The signaling pathway involving the Hh (Hedgehog) protein, and its homologues in other animals.

Etymology 2

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English Wikipedia has an article on:
Wikipedia

From the two antigenic variants involved in the blood group system (the H and h antigens).

Proper noun

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Hh

  1. (medicine) A blood group system involving the presence of either the H or the h antigen on the surface of a person's red blood cells.

Chipewyan

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Pronunciation

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  1. IPA(key): /χ/

Letter

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Hh (lower case hh)

  1. A letter of the Chipewyan alphabet, written in the Latin script.

Xhosa

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Alternative forms

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Pronunciation

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Letter

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Hh (lower case hh)

  1. A digraph in Xhosa orthography.