Definition of characteristic impedance in English:
characteristic impedance
noun ˌkarɪktəˌrɪstɪk ɪmˈpiːdns
Physics A parameter of a uniform transmission line of indefinite length, equal to the ratio of the voltage to the amplitude of a single wave travelling along it; (equivalently) the impedance which when terminating an arbitrary length of line at its output will give rise to an input impedance of the same value; symbol Z0.
Origin
Early 20th century. From characteristic + impedance.
Definition of characteristic impedance in US English:
characteristic impedance
nounˌkarɪktəˌrɪstɪk ɪmˈpiːdns
Physics A parameter of a uniform transmission line of indefinite length, equal to the ratio of the voltage to the amplitude of a single wave travelling along it; (equivalently) the impedance which when terminating an arbitrary length of line at its output will give rise to an input impedance of the same value; symbol Z0.
Origin
Early 20th century. From characteristic + impedance.