thermotaxis (thermotaksis)

[NL., change of temperature, of a fine wire through which the currents are made to pa actuate the phonic diaphragm.-2. A telephone transmitter in which a red-hot wire forming part of the primary circuit of an induction-coil has its resistance changed by the sound-vibrations, thus inducing currents in the secondary which are sent to line. thermotensile (ther-mō-ten's il), a. [