from the GNU version of the Collaborative International Dictionary of English
- n. an arched beam strengthened by a tie connecting its two ends.
- n. etc. See under Bowstring, Box, etc.
from The Century Dictionary and Cyclopedia
- n. A cast- or wrought-iron or built-up girder, having a tie-rod that forms an integral part of it: much used in store-fronts, etc. See bowstring-bridge.
Sorry, no etymologies found.