eidetic
Marked by or resulting from extraordinary ability to recall detailed and vivid mental images of visual images.
‘Funny that I should remember it? I have an eidetic memory for numbers, can't help
Of or relating to the essential forms of a phenomena.
Where it comes from
From German eidetisch, from Ancient Greek εἰδητικός (eidētikós), from εἶδος (eîdos, “form”).
Adapted from the Wiktionary entry eidetic (CC BY-SA 4.0).