retrofit['retrəufit]n.1.■(飞机、汽车、建筑物等的)改型,改装;式样翻新 —/,retrəu'fit,'retrəufit/vt.,vi.1.■改装,对…翻新改进:to retrofit jet plane to make them more comfortable翻新改进喷气式飞机使其更加舒适变形vt.,vi.retrofittedretrofitting