HD
HD may refer to:
Academia
- Handelshøjskolernes erhvervsøkonomiske Diplomuddannelse, a Danish evening course for a Graduate Diploma in Business and Administration
- Higher Diploma, an academic award
Business
- Harley-Davidson, an iconic American motorcycle manufacturer
- Headphone Dust, a record label run by music artist Steven Wilson
- Hokkaido International Airlines, a Japanese low-cost airline with IATA designator HD
- Home Depot, a chain of home improvement warehouse retailers
Medicine
- Attention-deficit hyperactivity disorder, known as Hyperactivity Disorder (HD), as in AD/HD
- Hip Dysplasia
- Hodgkin's disease
- Hormone disruptor
- Huntington's disease
- The HD gene, a historical name for the huntingtin gene, which can cause Huntington's disease when it has certain properties.
People
- Hilda Doolittle, also known as H.D., an American poet
Science and technology
- Hard drive, a computer device which stores digitally encoded data, also known as HDD
- Henry Draper Catalogue, a sequential numbering system for stars ordered by right ascension
- High-definition, in reference to high-definition video, high-definition television (HDTV), or Intel High Definition Audio
- High density, in reference to a floppy disk, other magnetic media or the optical formats HD DVD and Blu-ray
- Hybrid drive, a type of notebook computer hard drive that utilizes a large buffer
- HD Radio, an abbreviation from the term Hybrid Digital/analog radio
- HD Photo, an image format
- the chemical warfare agent sulfur mustard, which in its distilled form is referred to as HD
Other
- Harmonisation Document, a normative document in the European Union
- Hit Dice, a statistic related to hit points, indicating role-playing game characters' health or durability
- Holocaust denial
Source: adapted by the editor from Wikipedia, the free encyclopedia; from the article "HD". Image Credit.
