cloud forestBrE /ˈklaʊd fɒrɪst/ 🔊NAmE /ˈklaʊd fɔːrɪst/ 🔊, /ˈklaʊd fɑːrɪst/ 🔊 noun [countable, uncountable] a forest in tropical or subtropical parts of the world that usually has thick cloud at the level of the tops of the trees （热带或亚热带的）云雾林 ➡ compare rainforest