- a town in S Wales, in Caerphilly county borough. Pop (including Ystrad Mynach): 17 185 (2001)
Examples from the Web for gelligaer
Och, but tis shockin, shockin; an theyll never have him in Gelligaer again.
Aye, hes grown old with it all, an he the first man in Gelligaer!
Jane Elins gone, too; she left Gelligaer over half an hour past, said Keturah slowly.