Botany. One of the ducts or vessels in the woody tissue of plants, formed from the coalescence of series of cells by disappearance of the…

(a) a vessel carrying a cargo of wood; (b) Botany a sap-conducting vessel in the woody tissue of a plant.

A vascular cell, with pitted lignified wall, which serves for the conduction of water; a vascular wood-cell.

a fibre-like tracheid that typically has a thick wall, tapering ends, and bordered pits with slit-like apertures.

General term for a wood-vessel (trachea), wood-cell (tracheide), or other structure of the same class.