noun
or lava·lier also laval·liere |lavə|li(ə)r, |läv-
( -s )
Etymology: French lavallière necktie with a large bow, probably from Françoise Louise de la Baume Le Blanc, Duchesse de La Vallière died 1710 mistress of Louis XIV
1. : a pendant ornament on a fine chain that is worn as a necklace
2. : something suggesting a lavaliere (as a spot of white on the neck of a cat)