1. HD - Noun
2. HD - Proper noun
(biochemistry) Initialism of HomeoDomain.
(computing) Initialism of Hard Disc/Hard Disk/Hard Drive.
(pathology) Initialism of Hansen's Disease.
(pathology) Initialism of Hodgkin's Disease.
(pathology) Initialism of Huntington's Disease.
(medicine) Initialism of HemoDialysis.
(television) Initialism of High Definition (“1280×720 pixels”).
Synonym: 720p
Coordinate terms: FHD, QHD, SD, UHD
Initialism of High Density.
Initialism of heavy duty.
HD
Initialism of Harley-Davidson.