Oxford Dictionary English cold frame noun noun BrE BrE//ˈkəʊld freɪm// ; NAmE NAmE//ˈkoʊld freɪm// (also frame) Add to my wordlistjump to other results enlarge image a small wooden or metal frame covered with glass that you grow seeds or small plants in to protect them from cold weatherSee cold frame in the Oxford Advanced American DictionaryCheck pronunciation: cold frame oxfordlearnersdictionaries.com