Hh

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

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

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

Proper noun

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

Pronunciation

1. IPA^(key): /χ/

Letter

Hh (lower case hh)

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

Xhosa

Alternative forms

• H

Pronunciation

• IPA^(key): /ɦ/

Letter

Hh (lower case hh)

1. A digraph in Xhosa orthography.