tracheid

English Thesaurus

1. long tubular cell peculiar to xylem (noun.plant)

hypernym	:	vascular tissue,
definition	:	tissue that conducts water and nutrients through the plant body in higher plants (noun.plant)

part meronym	:	xylem,
definition	:	the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels (noun.plant)