HRR may refer to:
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Haploid-relative-risk
The Haplotype-relative-risk (HRR) method is a family-based method for determining gene allele association to a disease in the presence of actual genetic linkage. Nuclear families with one affected child are sampled using the parental haplotypes no ...
, a method for determining gene allele association to a disease
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Harrington railway station
Harrington is a railway station on the Cumbrian Coast Line, which runs between and . The station, situated south-west of Carlisle, serves the villages of Harrington and Salterbeck in Cumbria. It is owned by Network Rail and managed by Nort ...
, in England
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Henley Royal Regatta
Henley Royal Regatta (or Henley Regatta, its original name pre-dating Royal patronage) is a rowing event held annually on the River Thames by the town of Henley-on-Thames, England. It was established on 26 March 1839. It differs from the thre ...
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Healy River Airport
Healy River Airport is a state owned, public use airport serving Healy, a community located in the Denali Borough of the U.S. state of Alaska. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized ...
, in Alaska, United States
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Heart rate reserve
Heart rate (or pulse rate) is the frequency of the heartbeat measured by the number of contractions (beats) of the heart per minute (bpm). The heart rate can vary according to the body's physical needs, including the need to absorb oxygen and exc ...
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Homologous recombination repair
Homologous recombination is a type of genetic recombination in which genetic information is exchanged between two similar or identical molecules of double-stranded or single-stranded nucleic acids (usually DNA as in cellular organisms but may ...
, a major DNA repair pathway that mainly acts on double-strand breaks and interstrand crosslinks
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Hirzebruch–Riemann–Roch theorem
In mathematics, the Hirzebruch–Riemann–Roch theorem, named after Friedrich Hirzebruch, Bernhard Riemann, and Gustav Roch, is Hirzebruch's 1954 result generalizing the classical Riemann–Roch theorem on Riemann surfaces to all complex algebra ...
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Historicorum Romanorum reliquiae
The ''Historicorum Romanorum reliquiae'' is the "monumental" two-volume collection of scholarly editions of fragmentary Roman historical texts edited by Hermann Peter and published between 1870 and 1914. Peter published the Latin editions of these ...
'', a collection of ancient fragmentary Latin history-works
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The History of Rock and Roll
''The History of Rock & Roll'' is an American radio documentary on rock and roll music, first syndicated in 1969. Originally one of the lengthiest documentaries of any medium (48 hours in the 1969 version, 52 hours each for the 1978 and 1981 vers ...
'', a radio documentary
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Holy Roman Empire
The Holy Roman Empire was a Polity, political entity in Western Europe, Western, Central Europe, Central, and Southern Europe that developed during the Early Middle Ages and continued until its Dissolution of the Holy Roman Empire, dissolution i ...
(German: ')
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Hondo Railway
The Hondo Railway is a Class III shortline railroad that operates about of trackage to the west of San Antonio, Texas. Roughly half of the railroad's track () is terminal trackage leased from Texas Liquid Terminal, Inc. It was formed in 2006, an ...
, an American railway
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Horuru language, spoken in Indonesia
{{disambiguation