from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a beam built of steel plates and shapes welded or bolted together to form a deep beam larger than could be produced by a rolling mill
from the GNU version of the Collaborative International Dictionary of English
- n. a girder, the web of which is formed of a single vertical plate, or of a series of such plates riveted together.
Sorry, no etymologies found.