combining form - definition and synonyms

noun [countable] linguistics 

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/kəmˈbaɪnɪŋ ˌfɔː(r)m/
singularcombining form
pluralcombining forms
  1. a form of a word that has its own meaning but is used only in combination with other words to make new words, for example -footed in ‘a four-footed animal