Umwelt
Etymology
German for "surrounding world" (from "um-," "around," and "Welt," "world"), given its technical meaning by biologist Jakob von Uexküll around 1909. A tick’s umwelt is built almost entirely from warmth and butyric acid; ours adds color and language, but is no less partial.
noun · /OOM-velt/
The self-centered slice of reality an organism can actually perceive, shaped by its particular senses.
What it names
A humbling reminder that every creature — and every person — lives inside a private, sensory bubble that is only a fraction of what is really out there.
Example
To a dog, the park is a landscape of smells — a whole umwelt we walk through without noticing.
Related idea
Broader than mere perspective, which two people can swap; an umwelt is the hard sensory limit of a whole species — you cannot simply adopt the world of a bat or a bee.