For optimal recall, itâs easiest to group the many causes of shortness of breath into five main categories: cardiac, pulmonary, central nervous system (CNS) abnormalities, neuromuscular disorders and those secondary to blood disorders.
Definition of: HAL(1) An interface between hardware and software. See hardware abstraction layer. (2) (Heuristic/ALgorithmic) The name of the computer that took over command of the spaceship in Stanley Kubrick's famous film 2001: A Space Odyssey..
Suggested Resources(0.00 / 0 votes)Rate this definition: 1  hal. Quotes by hal -- Explore a large variety of famous quotes made by hal on the Quotes.net website. 2  hal. Song lyrics by hal -- Explore a large variety of song lyrics performed by hal on the Lyrics.com website. 3  HAL.