Battement is a 9 letter English word. It's valid Words with friends word worth 16 points.
You can make 182 anagrams from letters in battement (abeemnttt).
1820-30; French, equivalent to batt(re) to beat (see bate2) + -ment -ment
Every 'bar' of the music is called either a 'battement' of the drum, or a 'mesure' of the chanson.