from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. tracheal; breathing by means of tracheae
- n. Any of the Trachearia.
from the GNU version of the Collaborative International Dictionary of English
- adj. Tracheal; breathing by means of tracheæ.
from The Century Dictionary and Cyclopedia
- Of or pertaining to the trachea or tracheæ; breathing by means of tracheæ, not by pulmonary sacs, as an arachnidan.
- n. A member of the Trachearia.
Sorry, no etymologies found.
The tracheary tissue of the xylem is made up of small, spirally-marked vessels, and larger ones with thickened rings or with pits in the walls.
The tracheary tissue is only slightly developed, being represented by a few vessels  (_tr. _) at the outer angles of the bundle, and one or two smaller ones close to the air channel.
The petals do not appear until the other parts of the flower have reached some size, and the first tracheary tissue appears in the fibro-vascular bundle of the flower stalk (_D_).
The bundle (Fig. 68, _G_) shows a band of tracheary tissue in the centre surrounded by colorless cells, all about alike.
a peculiar conducting tissue (tracheary tissue), found only in the two highest sub-kingdoms.