1. A tube or canal by which air, water, or another substance is conveyed 2. Anatomy, Zoology. A canal in the body that conducts a bodily fluid 3. Botany. A canal or vessel formed by long, thin cells or by many cells 4. Electricity. An enclosed case for conductors or cables 5. Printing. An ink reservoir v. (used with an object) 6. Channeled by means of a duct or ducts What does duct mean in the sentence below? Water from underground springs was ducted to many Roman cities. A. defintion 3 B. definition 1 C. definition 4 D. definition 6