4H (disambiguation)

Last updated May 19, 2024

4H may refer to:

4-H, a youth organization administered by the USDA
Curtiss JN-4H, an American biplane
4H, a Washington, D.C. Metrobus route, in the United States
4H-pyran
4H-SiC, one of the polymorphs of silicon carbide
Hydrogen-4 (⁴H, or quadrium), an isotope of hydrogen
4H, IATA code for United Airways, a Bangladeshi airline
4H disease, an early name for AIDS since the syndrome seemed to affect heroin users, homosexuals, hemophiliacs, and Haitians
4H, the production code for the 1975 Doctor Who serial Planet of Evil

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HD may refer to:

HI or Hi may refer to:

H5, H05 or H-5 may refer to:

HX, Hx, H_x, or hx may refer to:

Her is the objective and possessive form of the English-language feminine pronoun she.

Fon or FON may refer to:

CHN may stand for:

AAO, AAo or aao may refer to:

H1, H-1, H01, H I may refer to:

H3, H03 or H-3 may refer to:

H4, H04, or H-4 may refer to:

AHP or Ahp may refer to:

6H or 6-H can refer to:

HII may refer to:

BRH could refer to:

HH-2, HH2, HH 2, HH.2, may refer to:

5H or 5h may refer to:

7H or 7-H can refer to:

Iron(II) hydride, systematically named iron dihydride and poly(dihydridoiron) is solid inorganic compound with the chemical formula (FeH^₂)^_n (also written ([FeH^₂])_n or FeH^₂). ). It is kinetically unstable at ambient temperature, and as such, little is known about its bulk properties. However, it is known as a black, amorphous powder, which was synthesised for the first time in 2014.

NHE or Nhe, an acronym, may refer to:

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4H (disambiguation)

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