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1. gastrointestinal_tract
noun. tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination.
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3. tract
noun. ['ˈtrækt'] a system of body parts that together serve some particular purpose.
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Etymology
- tract (English)
- tractus (Latin)
4. tract
noun. ['ˈtrækt'] a brief treatise on a subject of interest; published in the form of a booklet.
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Etymology
- tract (English)
- tractus (Latin)