tracheal

[ trey-kee-uh l or, esp. British, truh-kee-uh l ]

/ ˈtreɪ ki əl or, esp. British, trəˈki əl /

Anatomy, Zoology. pertaining to or connected with the trachea or tracheae.

Botany. of the nature of or composed of tracheae or vessels.

Origin of tracheal

First recorded in 1700–10; trache(a) + -al¹

post·tra·che·al, adjective pre·tra·che·al, adjective trans·tra·che·al, adjective

Each opening by a separate aperture into the base of the tracheal pit, and measuring about 0.002 mm.

The Works of Francis Maitland Balfour, Volume 1 |Francis Maitland Balfour
The tracheal opening is not as far forward as in bimaculata, being nearer the spinnerets than the epigynum.

The Common Spiders of the United States |James Henry Emerton
These two leaves are supported upon a framework of tracheal tubes.

Our Common Insects |Alpheus Spring Packard
Spi' ra cle, an opening into the tracheal breathing organs of insects.

A Guide for the Study of Animals |Worrallo Whitney

Even without any deformity the rachitical process is accompanied from an early time with bronchial and tracheal catarrh.

A System of Practical Medicine By American Authors, Vol. II |Various