Definition of "one-piece" in English

adjective

1. Composed of a single integral unit, or so appearing.

   • A one-piece metal hammer with an applied rubbery handgrip is nonetheless one integral piece, because the head, shaft, handle, and butt are cast in a single mold and/or forged as one seamless unit.
   • A man's one-piece swimsuit can be as small as a jock strap, whereas a woman's one-piece swimsuit covers both the genitalia and the breasts.

noun

1. A one-piece article of clothing, especially a swimsuit.