transmat noun 1verb 1forms 3 noun1 •(UK) A teleporter; a fictional device that transfers/transmits matter from one location to another without the object traversing the intervening distance as itself.One of these days.., they'll invent a Transmat that'll set you down anywhere. — 1959 verb1 •(UK) To teleport; to (cause to) travel via transmat device.It wasn't far enough away to think about transmatting and besides, that was no longer a viable option, what with vandals having wrecked some of the booths in the area. — 1991 formstransmatted · transmatting · transmats