renewable - definition and synonyms

adjective 

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/rɪˈnjuːəb(ə)l/
  1. 1
    a renewable contract, agreement etc can be continued for a longer period of time

    It’s a three-year contract, renewable for a further 12 months if both parties agree.

  2. 2
    renewable energy and natural materials replace themselves by natural processes, so that they are never completely used up

    The wood in our furniture all comes from renewable sources.

    renewable energy (=forms of energy for providing electricity, for example from the sun or wind):

    They are at last beginning to invest in renewable energy.