Definition of laval:
(n) :
A large city in southwestern Quebec, Canada; a suburb of Montreal.
(n) :
A placename:
(n) :
A town and commune, a prefecture of Mayenne department, Pays de la Loire, France.
(n) :
A tiny hamlet in the municipality of Sainte-Ode, Luxembourg province, Belgium.
(n) :
A surname from French.
(adj) :
Of or relating to lava.