bandeau

noun3

1. •
   A band for the hair.

   • She wore a bandeau in her hair.
2. •
   A narrow, tight bra, especially when strapless; hence, any women's top made from a similar band of fabric.

   • At Paris fashion week, a few weeks later, Kim’s sister Kendall wore a minimalist black bandeau top that echoed Kim’s look. — 2016
3. •
   A band.

   • The frontal bandeau is then elevated en bloc. A Bi on BC1 (Midas Rex) bit is used to create the osteotomies circumferentially. — 1998