noun: (science fiction) A member of a species of extraterrestrial cyborg mutants who appear in the television programme Doctor Who and are known for travelling in metallic shells, having monotone, mechanically distorted voices, repeating a limited number of phrases, and their fanatical obsession with exterminating other, non-Dalek beings.
noun: (figuratively) One who is dogmatic, unfeeling and determined.
noun: (nonstandard) Alternative letter-case form of Dalek [(science fiction) A member of a species of extraterrestrial cyborg mutants who appear in the television programme Doctor Who and are known for travelling in metallic shells, having monotone, mechanically distorted voices, repeating a limited number of phrases, and their fanatical obsession with exterminating other, non-Dalek beings.]
