transmedium adjective 1noun 2forms 2 adjective1 •Operating across multiple mediums (material(s) of the surrounding environment, e.g. solid, liquid, gas, vacuum).A transmedium drone flies out of water and then dives into water. Zhang Shuxin and his colleagues have reported that their drone used […] — 2021 noun2 •Several mediums (formats for presenting information) considered collectively.Looking inside the digital transmedium, we can discern distinct developments. — 2015 •A psychic who is able to cross boundaries between the natural and supernatural worlds. formstransmedia · transmediums