High Definition Television (HDTV): The generally agreed upon definition of HDTV is approximately twice the vertical and horizontal picture resolution of today's NTSC TV, which essentially makes the picture twice as sharp. HDTV also has a screen ratio of 16:9 as compared with most of today's TV screens, which have a screen ratio of 4:3. HDTV offers reduced motion artifacts (i.e. Ghosting, dot crawl), and offers 5.1 independent channels of CD-quality stereo surround sound, (also referred to as AC-3).

 

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High Definition Television (HDTV): The generally agreed upon definition of HDTV is approximately twice the vertical and horizontal picture resolution of today's NTSC TV, which essentially makes the picture twice as sharp. HDT . . . View Full Definition

Highly Conserved Sequence: Dna sequence that is very similar across several different types of organisms.

Highly Erodible Land (HEL): Land that is very susceptible to erosion, including fields that have at least 1/3 or 50 acres of soils with a natural erosion potential of at least 8 times their T value. More than 140 milli . . . View Full Definition

Highly Leveraged Transaction (HLT): An investment banking firm's letter indicating that the firm is highly confident it will be able to arrange financing for a securities deal.