TIRLEMONT, a city of the Netherlands, in the province of South Brabant and circle of Louvain. It has been fortified, but its walls are dilapidated. It stands on the river Geete, has a very fine market-place, and contains 8400 inhabitants, who carry on breweries and distilleries, and make some woollen cloths and hosiery. It is on the great road from Brussels to Liege. Long. 4. 48. E. Lat. 50. 49. N. A railroad from Brussels is nearly completed to this place, and is intended to proceed to Liege to join the Meuse.