tridim

• tri-dim

From tri- +‎ dim(ensional).

tridim (plural tridims)

1. (science fiction) Synonym of trideo (“a three-dimensional video”).
   • 2005, Karen Haber, Crossing Infinity, New York, N.Y.: ibooks, →ISBN, page 51:

     By the time they got to the Wrapateria the line of kids snaked down the block. The usual jokers were taking tri-dims of the crowd and playing them back to each other.

2. (science fiction) Synonym of tri-V (“a system capable of recording or displaying three-dimensional video”).
   • 1963, Robert Silverberg, “To See the Invisible Man”, in Earth in Transit, New York, N.Y.: Dell Publishing Co., Inc., published 1976, page 59:

     I entered theaters where the happy lotus eaters sat slumped in their massage chairs, transfixed by the glowing tridim images—and capered down the aisles. No one grumbled at me.

• Jesse Sheidlower, editor (2001–2024), “tri-dim, n.”, in Historical Dictionary of Science Fiction.