Sentence:  This synthesizer is by far the best I have heard, because it varies the intonation, and does not speak like a <WSD>Dalek</WSD>. 
Meaning of the word marked with <WSD> tags:  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 being bent on exterminating other beings mercilessly.