nonspherical

adjective non·spher·i·cal \ ˌnän-ˈsfir-i-kəl , -ˈsfer- \

Definition of nonspherical

: not having the form of a sphere or of one of its segments : not spherical
  • an irregular, nonspherical mass
  • nonspherical mirrors

First Known Use of nonspherical

1845

in the meaning defined above

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