crown bar
noun
Engineering a horizontal bar supporting the crown of an arch or tunnel, or the crown sheet in a steam engine.
Origin
Late 17th century; earliest use found in John Davies (1625–1693), translator.
- fricken
- Frick, Henry Clay
- fricking
- friction
- frictional
- frictional unemployment
- friction clutch
- friction drive
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- frictionless
- frictionlessly
- friction tape
- friction welding
- Friday
- Friday-face
- Friday-faced
- Friday fare
- Friday feast
- Friday prayers
- Fridays
- fridge
- fridge-freezer
- fried
- Friedan, Betty
- Friedman, Milton