retronym

• 指为区分旧版本或原始形式与新事物而新造的词语或短语，因为原有术语已变得不够准确或产生歧义。

A noun referring to a word or phrase created to distinguish an older version or original form of something from a newer one, because the existing term has become inadequate or ambiguous.

1. New term for old conceptC1formal

   A word or phrase created to distinguish an older version of something from a newer version that has taken over the original name.

   旧概念的新术语

   • 'Acoustic guitar' is a retronym created after the electric guitar became popular.
   • 'Analog watch' is a retronym used to differentiate from digital watches.
   • 'Landline phone' is a retronym that emerged after mobile phones became common.