/lav'euh lear", lah'veuh-/ , n.
1. an ornamental pendant, usually jeweled, worn on a chain around the neck.
2. See lavaliere microphone .
Also, lavalier, lavallière Fr. /lann vann lyerdd"/ .
[ 1915-20; after the Duchesse de La Vallière (1644-1710), one of the mistresses of Louis XIV ]