Definitions

1. noun

a type of dead, elongated, and tapering cell found in the secondary xylem of plants, especially conifers, and providing mechanical support

“The tracheids in the tree’s trunk help to transport water and nutrients throughout the plant.”

2. noun

a cell in the xylem of a plant, especially a conifer, that is responsible for water conduction

“The tracheids in the xylem of the coniferous tree play a crucial role in its survival.”