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underwire

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noun un·der·wire \ˈən-dər-ˌwī(-ə)r\

Simple Definition of underwire

  • : wire running through the bottom edge of a brassiere to provide support for a woman's breasts

Source: Merriam-Webster's Learner's Dictionary

Full Definition of underwire

  1. :  a wire running through the bottom edge of a brassiere to aid in support

1973

First Known Use of underwire

1973


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