Definition of grillage
1 : a framework of timber or steel for support in marshy or treacherous soil
2 : a framework for supporting a load (as a column)
Origin of grillage
French, from griller to supply with grillwork, from gril
First Known Use: 1776
Seen and Heard
What made you want to look up grillage? Please tell us where you read or heard it (including the quote, if possible).