Asteroid 21550, Laviolette, was discovered on August 17, 1998 by the Lincoln Laboratory Near-Earth Asteroid Research (LINEAR) Team at Socorro, New Mexico. It has a period of 4 years, 218 days.
It was named for Ortonville, Michigan high school student Jessica Lynn Laviolette (born 1987), who was awarded first place in the 2006 Intel International Science and Engineering Fair for her engineering project.
Jessica Laviolette
The meaning of asteroid Laviolette seems to be: having to deal with attack, asserting oneself.