Definition of "HD"
HD
noun
countable and uncountable, plural HDs
(biochemistry) Initialism of HomeoDomain.
(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”).
proper noun