Wegener's is a proper noun, used to denote something belonging to Wegener, most commonly referring to Wegener, the meteorologist/geologist Alfred Wegener or his proposed concept, Wegener's name. In pronunciation contexts, it is treated as a possessive proper noun, with the final 's' typically pronounced as an /z/ sound when attached to a noun stem. The form is often encountered in scientific and historical discussions as the possessive of Wegener.
Full pronunciation guide
