The Collaborative International Dictionary of English v.0.48:
Brussels \Brussels\ prop. n. (Geography)
The capital city of Belgium. Population (2000) = 949,070
(metro). It has given its name to a kind of carpet, a kind of
Brussels carpet, a kind of carpet made of worsted yarn
fixed in a foundation web of strong linen thread. The
worsted, which alone shows on the upper surface in drawn
up in loops to form the pattern.
Brussels ground, a name given to the handmade ground of
real Brussels lace. It is very costly because of the
extreme fineness of the threads.
Brussels lace, an expensive kind of lace of several
varieties, originally made in Brussels; as, Brussels
point, Brussels ground, Brussels wire ground.
Brussels net, an imitation of Brussels ground, made by
Brussels point. See Point lace.
Brussels sprouts (Bot.), a plant of the Cabbage family,
which produces, in the axils of the upright stem, numerous
small green heads, or "sprouts," each a cabbage in
miniature, of one or two inches in diameter; the
Brussels wire ground, a ground for lace, made of silk, with
meshes partly straight and partly arched.