DH, Dh, dh, or dH may refer to:

Places

DH postcode area The DH postcode area, also known as the Durham postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of nine postcode districts in north-east England, within five post towns. These cover northern County Durham (including Durh ...

, in the United Kingdom for the area of Durham and surrounding towns *

Diamond Head, Hawaii Diamond Head is a volcanic tuff cone on the Hawaiian island of Oahu. It is known to Hawaiians as Lēahi (), which is most likely derived from ''lae'' (browridge, promontory) plus ''ahi'' (tuna) because the shape of the ridgeline resembles th ...

, a volcanic tuff cone on Oʻahu *

Dadra and Nagar Haveli and Daman and Diu Dadra and Nagar Haveli and Daman and Diu is a union territory in India. The territory was constituted through the merger of the former territories of Dadra and Nagar Haveli and Daman and Diu. Plans for the proposed merger were announced by th ...

, a union territory of India (ISO 3166-2)

Organisations

D+H DH, Dh, dh, or dH may refer to: Places * DH postcode area, in the United Kingdom for the area of Durham and surrounding towns * Diamond Head, Hawaii, a volcanic tuff cone on Oʻahu * Dadra and Nagar Haveli and Daman and Diu, a union territory of ...

, a Canadian financial services company *

Department of Health (United Kingdom) The Department of Health and Social Care (DHSC) is a Departments of the Government of the United Kingdom, ministerial department of the Government of the United Kingdom. It is responsible for government policy on health and adult social care mat ...

, a department of the UK government * DH Press, the Dark Horse Comics imprint that publishes novels *

Deccan Herald ''Deccan Herald'' is an Indian English-language daily newspaper published from the Indian state of Karnataka. It was founded by businessman K. N. Guruswamy and launched on 17 June 1948. It is published by The Printers Mysore, a privately hel ...

, an Indian newspaper *

Dundonald House Dundonald House is a government building in Belfast, Northern Ireland. Built in 1962 it housed the Department of Agriculture and Rural Development, the Geological Survey of Northern Ireland and the Northern Ireland Prison Service until 2023 wh ...

, a governmental building in Northern Ireland

Science and technology

Denavit–Hartenberg parameters In mechatronics engineering, the Denavit–Hartenberg parameters (also called DH parameters) are the four parameters associated with the DH convention for attaching reference frames to the links of a spatial kinematic chain, or robot manipula ...

, a type of robotics convention *

Dermatitis herpetiformis Dermatitis herpetiformis (DH) is a chronic autoimmune blistering skin condition, characterised by intensely itchy blisters filled with a watery fluid. DH is a cutaneous manifestation of coeliac disease, although the exact causal mechanism is not ...

, a skin disease * DH register, the high byte of a DX register in x86-compatible microprocessors * Diffie-Hellman key exchange (D-H), a specific method of securely exchanging cryptographic keys over a public channel *

District heating District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heater, space heating and w ...

, a method of heating multiple buildings from a central location *

Doubled haploidy A doubled haploid (DH) is a genotype formed when haploid cells undergo chromosome doubling. Artificial production of doubled haploids is important in plant breeding. Haploid cells are produced from pollen or egg cells or from other cells of the ga ...

, a genetic status * Deuterium:protium (D:H), a ratio in

deuterium-depleted water Deuterium-depleted water (DDW) is water which has a lower concentration of deuterium than occurs naturally at sea level on Earth. DDW is sometimes known as light water or protium water, although " light water" has long referred to ordinary water ...

*°dH, deutsche Härte, a unit of

water hardness Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicar ...

* Dorsal horn of the spinal cord, or

posterior grey column The grey columns are three regions of the somewhat ridge-shaped mass of grey matter in the spinal cord. These regions present as three columns: the anterior grey column, the posterior grey column, and the lateral grey column, all of which are ...

Sports

Designated hitter The designated hitter (DH) is a baseball player who bats in place of another position player, most commonly the pitcher. Unlike other players in a team's lineup, they generally only play as an offensive player and usually do not play defense as ...

, a baseball rule *

Doubleheader (baseball) In the sport of baseball, a doubleheader is a set of two games played between the same two teams on the same day. Historically, doubleheaders have been played in immediate succession, in front of the same crowd. Contemporarily, the term is also u ...

Doubleheader (television) A doubleheader is a term used by television networks to refer to two games involving the same sport that are shown back-to-back on the same network, even though the events do not involve the same two teams (three such games may be referred to as a ...

Downhill (ski competition) Downhill is a form of alpine skiing competition. Whereas the other alpine skiing events (Slalom skiing, slalom, giant slalom, Super-G, super giant slalom, and alpine skiing combined, combined) emphasize turning and technique, downhill emphasizes ...

, a skiing discipline *

Downhill mountain biking Downhill Mountain Biking (DH) is a style of mountain biking Mountain biking (MTB) is a sport of riding bicycles off-road, often over rough terrain, usually using specially designed mountain bikes. Mountain bikes share similarities with ot ...

, a bicycling discipline

Transportation

de Havilland The de Havilland Aircraft Company Limited (pronounced , ) was a British aviation manufacturer established in late 1920 by Geoffrey de Havilland at Stag Lane Aerodrome Edgware on the outskirts of North London. Operations were later moved to ...

, a former UK aircraft manufacturer *

Decision height In aviation, an instrument approach or instrument approach procedure (IAP) is a series of predetermined maneuvers for the orderly transfer of an aircraft operating under instrument flight rules from the beginning of the initial approach to a lan ...

, in aviation *

Delaware and Hudson Railway The Delaware and Hudson Railway (D&H) is a railroad that operates in the Northeastern United States. In 1991, after more than 150 years as an independent railroad, the D&H was purchased by the Canadian Pacific Railway (CP). CP, which would it ...

Independence Air Independence Air was a low-cost airline, owned by FLYi, Inc., headquartered in the Loudoun Gateway Corporate Center in Dulles, Virginia, United States (near Washington, D.C.) that operated from 1989 until 2006. Its route network focused on the ...

(IATA code)

Other uses

Dh (digraph) This is a list of digraphs used in various Latin alphabets. In the list, letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it would be in Danish, ...

, in linguistics *

Dear husband In Internet slang, ''DH'' is an abbreviation for ''dear husband''; it is commonly used by women on certain forums to refer to their husbands. Similarly, ''DD'' means ''dear daughter'' and ''DS'' means ''dear son''. The ''Oxford Dictionary of Eng ...

, a shorthand phrase common in online forums * Donor husband *

Digital humanities Digital humanities (DH) is an area of scholarly activity at the intersection of computing or Information technology, digital technologies and the disciplines of the humanities. It includes the systematic use of digital resources in the humanitie ...

, a community of practice combining technology with humanistic inquiry *

Documentary hypothesis The documentary hypothesis (DH) is one of the models used by biblical scholars to explain the origins and composition of the Torah (or Pentateuch, the first five books of the Bible: Book of Genesis, Genesis, Book of Exodus, Exodus, Leviticus, Bo ...

or Wellhausen hypothesis, describing the origins of Judeo-Christian scripture *

Desperate Housewives ''Desperate Housewives'' is an American mystery comedy-drama television series created by Marc Cherry, and produced by ABC Studios and Cherry Productions. It aired for eight seasons on ABC from October 3, 2004, until May 13, 2012, for a tota ...

, television series * Domestic Helper * Informal abbreviation for ''