In telecommunication, the transmission coefficient is the ratio of the amplitude of the complex transmitted wave to that of the incident wave at a discontinuity in the transmission line.
ɪn tˌɛlᵻkəmjˌuːnɪkˈeɪʃən, ðə tɹænsmˈɪʃən kˌoʊɪfˈɪʃənt ɪz ðə ɹˈeɪʃɪˌoʊ ʌvðɪ ˈæmplɪtˌuːd ʌvðə kˈɑːmplɛks tɹænsmˈɪɾᵻd wˈeɪv tə ðæt ʌvðɪ ˈɪnsɪdənt wˈeɪv æɾə dɪskɑːntɪnjˈuːᵻɾi ɪnðə tɹænsmˈɪʃən lˈaɪn.