Definition of "bandeau"

You dress with a square glass before you, and a long glass behind you; your hair trusts to its own brown or black attractions, either curled or braided,—or you put on a wreath, a bunch of flowers, or a pearl bandeau;...

1831, L[etitia] E[lizabeth] L[andon], chapter XVIII, in Romance and Reality. […], volume I, London: Henry Colburn and Richard Bentley, […], page 221

Fragment of a wool cap, of which only the bandeau is well preserved. It is made in square knotting in alternate directions (see Fig. 79).

2002, Raoul d'Harcourt, Textiles of Ancient Peru and Their Techniques

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

1998, AANS Publications Committee: Setti S. Rengachary, MD, and Edward C. Benzel, MD, Calvarial and Dural Reconstruction: Neurosurgical Topics

The supraorbital bandeau is fixed to the nasal structure by a titanium [...]This bandeau is fixed by microplates. The median bone strip is fixed to the [...]

1999, Bill C. Terry, Maxime Champy, Franz Härle, et al, Atlas of Craniomaxillofacial Osteosynthesis: miniplates, microplates, and screws

At Paris fashion week, a few weeks later, Kim’s sister Kendall wore a minimalist black bandeau top that echoed Kim’s look.

2016 December 13, Jess Cartner-Morley, The Guardian