(usually used with a singular verb) a system in which various forms of information, as data, text, graphics, video, and audio, are linked together by a hypertext program.
hy·per·me·di·a (hī'pər-mē'dē-ə) n.
(used with a sing. or pl. verb) A computer-based information retrieval system that enables a user to gain or provide access to texts, audio and video recordings, photographs, and computer graphics related to a particular subject.