Umwelt /ˈʊmvɛlt/ noun1 •One's surroundings or environment; the outer world as perceived by organisms within it.It seems that these S-E-A-Values are all about what ethnologists call the Umwelt — the area of alarm around members of the brute creation, such as human beings. — 1979 formsUmwelten · Umwelts · umwelten · umwelts