Definition of tracheid
: a long tubular pitted cell that is peculiar to xylem, functions in conduction and support, and has tapering closed ends and thickened lignified walls
Origin of tracheid
International Scientific Vocabulary
First Known Use: 1875
Learn More about tracheid
Britannica.com: Encyclopedia article about "tracheid"
Seen and Heard
What made you want to look up tracheid? Please tell us where you read or heard it (including the quote, if possible).