Dictionarysen•sil•lumPronunciation: (sen-sil'um), [key] —n., —pl. -laPronunciation: (-lu). [key] Zool.a simple sense organ usually consisting of one or a few cells at the peripheral end of a sensory nerve fiber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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