HD
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Look up H.D., HD, or hd. in Wiktionary, the free dictionary. |
HD may refer to:
Arts and media
- Hawaiian Dick, a 2002 comic book
- Helsingborgs Dagblad, a Swedish newspaper
- Hit Dice, a statistic related to hit points, indicating role-playing game characters' health or durability
Business
- Häagen-Dazs, an ice cream brand
- Harley-Davidson, a motorcycle manufacturer
- Hokkaido International Airlines, an airline with IATA designator HD
- The Home Depot, a chain of home improvement retailers
Science and technology
Chemistry
- High-density polyethylene, a high-density polyethylene plastic material seen in milk containers and various juice beverages
- Hydrogen deuteride, a diatomic compound of hydrogen and deuterium
- Hyperdeformation, extremely deformed atomic nuclei
- The chemical warfare agent sulfur mustard, which in its distilled form is referred to as HD
Computing
- Hard disk, a computer device which stores digitally encoded data, also known as 'hard drive' or 'hard disk drive'
- High density, in reference to a floppy disk, other magnetic media or the optical formats HD DVD and Blu-ray Disc
- Hybrid drive, a type of notebook computer hard drive that utilizes a large buffer
Medicine
- Hansen's disease, an eponymous name for leprosy
- Hemodialysis, a form of renal dialysis
- Hip dysplasia
- Hirschsprung's disease, a disorder of the abdomen
- Hodgkin's disease, a form of lymphoma
- Hormone disruptor
- Huntington's disease, a genetic disorder affecting the central nervous system
- HD (gene), also called HTT or IT-15, which encodes huntingtin protein and causes Huntington's disease when abnormally expanded
- Hyperactivity disorder, another name for attention deficit hyperactivity disorder (ADHD)
Other uses in science and technology
- High-definition, in reference to:
- High-definition television (HDTV), a resolution that is substantially higher than that of standard-definition television
- High-definition video, video of higher resolution and quality than standard-definition
- Intel High Definition Audio, a specification for the audio sub-system of personal computers
- HD Voice, or wideband audio
- HD Photo, an image format
- HD Radio, an abbreviation from the term hybrid digital/analog radio
- Henry Draper Catalogue, an astronomical catalogue often used to designate stars
People
- HDStarcraft, American electronic sports shoutcaster
- H.D., the pen name of Hilda Doolittle (1886–1961), a 20th-century American poet and novelist
Places
- HD postcode area, UK, covering Huddersfield, Brighouse and Holmfirth in England
- Heidelberg, Germany, on vehicle registration plates
- Hunedoara County, Romania
Other uses
- Higher diploma, an academic award
- National History Day, an American history competition, somewhat similar to Science Fair
- Holocaust denial, consists of claims that the genocide of Jews during World War II did not happen
See also
- Heavy Duty (disambiguation)
- Hurter and Driffield (H&D), speed numbers, an old scale for measuring film speed
- All pages beginning with HD
- All pages with a title containing HD
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