Definitions for "Tracheid"
A wood cell with spiral or other markings and closed throughout, as in pine wood.
Elongated and tapering woody plant cell, as in conifers. Conducts nutrients and supports the plant.
(tray´ kee id) • A distinctive conducting and supporting cell found in the xylem of nearly all vascular plants, characterized by tapering ends and walls that are pitted but not perforated.