strain·ing beam 
(strānĭng)
(strānĭng)n.
A horizontal beam separating the tops of two queen posts in a truss. Also called straining piece.
- extracurricular
- extraditable
- extradite
- extradition
- extrados
- extraembryonic
- extragalactic
- extrahepatic
- extra-high voltage
- extrajudicial
- extrajudicially
- extralegal
- extralegally
- extramarital
- extramundane
- extramural
- extraneous
- extraneously
- extraneousness
- extranet
- extranuclear
- extraocular muscle
- extraordinaire
- extraordinarily
- extraordinary