（电视或技术）高清晰度的，高分辨率的High-definition television or technology is a digital system that gives a much clearer picture than traditional television systems. （电视或技术）高清晰度的，高分辨率的
...high-definition TV, with its sharper images and better sound.
图像更为清晰、音效更为出众的高清电视
High definition is also a noun.
These games are more popular now that they are available in high definition.