thwartwise

Adjective

• extending or lying across; in a crosswise direction; at right angles to the long axis
  • cross members should be all steel
    
  • from the transverse hall the stairway ascends gracefully
    
  • transversal vibrations
    
  • transverse colon
    

Related words

• Synonyms: 
  cross(a) , transverse , transversal