alternative technologynoun [ C or U ]
uk/ɒlˌtɜː.nə.tɪv tekˈnɒl.ə.dʒi//ɑːlˌtɝː.nə.t̬ɪv tekˈnɑː.lə.dʒi/a form of technology that is less harmful to the environment than the usual or current form of technology:
There should be an increase in the use of alternative technologies to heat and cool buildings.
They called on NATO to stop using sonar and to work towards developing alternative technology that does not harm whales.