crossmember

• cross-member

From cross- +‎ member.

• (General American) IPA^(key): /ˈkɹɔsˌmɛmbɚ/, (cot–caught merger) /ˈkɹɑsˌmɛmbɚ/
• (Received Pronunciation) IPA^(key): /ˈkɹɒsˌmɛmbə/

crossmember (plural crossmembers)

1. (architecture) A transverse structural support.
2. (rail transport) A beam lying crosswise; a rail.
   • 1964 February, “French 155mph electric locomotives”, in Modern Railways, page 124:

     The machines are supported at the pinion end by the gearcase itself and at the other end by cross-members of the bogie frame.