Definition of circumferential in US English:

circumferential

adjective

  • Denoting or relating to the circumference of a curved geometric figure.

    ‘the pipe showed several circumferential cracks’

Pronunciation

circumferential

/sərˌkəmfəˈren(t)SH(ə)l//sərˌkəmfəˈrɛn(t)ʃ(ə)l/