/ ˈɔːtəʊwaɪnd; NAmE ˈɔːtoʊ-/ (also auto·wind·er /ˈɔːtəʊwaɪndə(r); NAmE ˈɔːtoʊ-/) noun
1.
[ sing. ] part of a camera which automatically winds the film forwards so that you can take the next picture
2.
[ U ] the ability of a camera to do this
► auto·wind verb [ v ]