fenster

== English == === Etymology === From German Fenster (“window”), from Latin fenestra (“window”). === Noun === fenster (plural fensters) (geology) A geologic structure formed by erosion or normal faulting on a thrust system; a tectonic window. 1983, J. F. Evernden, R. E. Criss, William Jasper Sando, [1] Examination of strain data and cross sections suggests that the fensters expose rootless tectonic slices […] === Anagrams === Fenters, fernets, Ren fest