English version

spheroid

From Longman Dictionary of Contemporary Englishspheroidsphe‧roid /ˈsfɪərɔɪd $ ˈsfɪr-/ noun [countable] technical  a shape that is similar to a ball, but not perfectly round
Examples from the Corpus
spheroidIn mechanical terms, the head is an elliptical spheroid with a single universal joint, the neck.
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