Hh
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See also: Appendix:Variations of "hh"
English
Etymology 1
Initialism of Hedgehog; the gene and the signaling pathway are named after the protein.
Proper noun
Hh
- (biology) A protein expressed in the larva of the fruit fly Drosophila melanogaster, required for the proper development of the larval body.
- The gene coding for the Hh (Hedgehog) protein.
- The signaling pathway involving the Hh (Hedgehog) protein, and its homologues in other animals.
Etymology 2
From the two antigenic variants involved in the blood group system (the H and h antigens).
Proper noun
Hh
- (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
Pronunciation
Letter
Hh (lower case hh)
- A letter of the Chipewyan alphabet, written in the Latin script.
Xhosa
Alternative forms
Pronunciation
Letter
Hh (lower case hh)
- A digraph in Xhosa orthography.