What Does It Mean?

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From our dictionary:
vis•cer•al

(vis'ur•ul),
adj.

1. of or pertaining to the viscera.
2. affecting the viscera.
3. of the nature of or resembling viscera.
4. characterized by or proceeding from instinct rather than intellect: a visceral reaction.
5. characterized by or dealing with coarse or base emotions; earthy; crude: a visceral literary style.