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- His nostrils seemed to dilate with a purely animal lust for the chase, and his mind was so absolutely concentrated upon the matter before him that a question or remark fell unheeded upon his ears, or, at the most, only provoked a quick, impatient snarl in reply.Adventure IV — The Boscombe Valley Mystery (62% in)
There are no more uses of "dilate" in The Adventures of Sherlock Holmes.
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