[{"Bold_text": "noun", "List Items": ["any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.", "Anatomy, Zoology.a tube, canal, or vessel conveying a body fluid, especially a glandular secretion or excretion.", "Botany.a cavity or vessel formed by elongated cells or by many cells.", "Electricity.a single enclosed runway for conductors or cables.", "Printing.(in a press) the reservoir for ink."]}, {"Bold_text": "verb (used with object)", "List Items": ["to convey or channel by means of a duct or ducts:Heat from the oven is ducted to the outside."]}]