Flex
“Flex” is a German word. Its meaning in English:
noun
Etymology
The device was first invented in 1954 and sold under the brand name Flex, which eventually entered common usage to refer to any such device. Apparently a clipping of flexibel.
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About this dictionary
The German dictionary on Glottosphere has 83,586 entries with a page. Browse the German dictionary.
Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.