phenomenon /fəˈnɒmɪnən/ Learn to pronounce noun plural noun: phenomena 1. a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question. "glaciers are interesting natural
phenomenon /fəˈnɒmɪnən/ Learn to pronounce noun plural noun: phenomena 1. a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question. "glaciers are interesting natural