Defn: . A steam boiler having two flues which contain the furnaces and extend through the boiler from end to end.
LANCASTERIAN
Lan`cas*te"ri*an, a.
Defn: Of or pertaining to the monitorial system of instruction followed by Joseph Lancaster, of England, in which advanced pupils in a school teach pupils below them.
LANCE
Lance, n. Etym: [OE. lance, F. lance, fr. L. lancea; cf. Gr. Launch.]
1. A weapon of war, consisting of a long shaft or handle and a steel blade or head; a spear carried by horsemen, and often decorated with a small flag; also, a spear or harpoon used by whalers and fishermen. A braver soldier never couched lance. Shak.
2. A soldier armed with a lance; a lancer.
3. (Founding)
Defn: A small iron rod which suspends the core of the mold in casting a shell.
4. (Mil.)
Defn: An instrument which conveys the charge of a piece of ordnance and forces it home.