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febrile vs. afebrile

[fee-bruhl, feb-ruhl, fee-brahyl] / ˈfi brəl, ˈfɛb rəl, ˈfi braɪl /

adjective

  1. pertaining to or marked by fever; feverish.

[ey-fee-bruhl, ey-feb-ruhl] / eɪˈfi brəl, eɪˈfɛb rəl /

adjective

  1. without fever; feverless.