IPA Transcription of "numerical aperture" in American English

The American English IPA transcription of “numerical aperture” is /nuˈmɛɹəkəl ˈæpɚt͡ʃɚ/.

IPA chartsAmerican English IPA Chart

numerical
apertureˈæpɚt͡ʃɚ

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  • numerical aperturedimensionless number that characterizes the range of angles over which the system can accept or emit light

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