chignon

noun

1. A roll or twist of hair worn at the nape of the neck; a bun.

   “The chignon cannot be confounded with other artificialities which ladies put on and off.”

   “Madame du Barry could not merely be credited with inventing the chignons which bear her name.”

   “If I close my eyes I can see Marie today as I saw her then. Round, rosy face, snub nose, dark hair piled up in a chignon.”

   “The physician should evaluate for a history of tight ponytails, buns, chignons, braids, twists, weaves, cornrows, dreadlocks, sisterlocks, and hair wefts in addition to the usage of religious hair coverings.”

2. A temporary swelling on a neonate's head after a ventouse-assisted delivery.