Definitions from Wiktionary (Hh)

▸ noun:  His Holiness.
▸ noun:  His or Her Highness.
▸ noun:  (biology) A protein expressed in the larva of the fruit fly Drosophila melanogaster, required for the proper development of the larval body.
▸ noun:  The gene coding for the Hh (Hedgehog) protein.
▸ noun:  The signaling pathway involving the Hh (Hedgehog) protein, and its homologues in other animals.
▸ noun:  (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.
▸ noun:  Initialism of Hansestadt Hamburg. The German city of Hamburg. (Used on licence plates and informally in other contexts.)
▸ noun:  Abbreviation of heavy helicopter.
▸ noun:  Abbreviation of household. [Collectively, all the persons who live in a given house; a family including attendants, servants etc.; a domestic or family establishment.]
▸ adjective:  (philately) Initialism of heavily hinged.
▸ noun:  Abbreviation of hands (one hand being four inches).



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