Wurm

Wurm is a term with several distinct meanings in German and English. In German, Wurm is an older or less common spelling of the noun for worm; the modern standard form is Würm, which also appears in the English transliteration as Wurm in historical texts and some proper names. The word is also used as a surname of German origin, found in various countries.

In geology, the Würm glaciation (also anglicized as Wurm) refers to the last major glacial period in the Alpine region of Europe, approximately 130,000 to 11,700 years ago. It marks the final phase of the Pleistocene ice ages in the Alps and is widely used in European stratigraphy. The name derives from the Würm River in Bavaria, near Munich, where early glacial studies contributed to the period's identification.

Geography and naming: The Würm River is a Bavarian river in southern Germany; its name was adopted for the glaciation, and the spelling variation between Würm and Wurm reflects differences between German orthography and older English or anglicized forms.