aspheric /ə- or ā-sferˈik/ or aspherical /-i-kəl/

1. Not spherical
2. (of a surface) not forming part of a sphere

• crash barriers
• crash course
• crash courses
• crash dive
• crash-dive
• crash-dived
• crash dives
• crash-dives
• crash-diving
• crash-dove
• crashed
• crashes
• crash-helmet
• crash-helmets
• crashing
• crash-land
• crash-landed
• crash-landing
• crash-landings
• crash-lands
• crash-mat
• crash-mats
• crash-matting
• crash out
• crashpad