Look up: tracheae

1. tracheae
   Internal tubes through which air is taken for respiration. Vertebrates with lungs have a single trachea carrying air to the lungs, while insects and some other land-living arthropods have a complex network of tracheae carrying air from the spiracles to all parts of the body.
   Found on http://www.ucmp.berkeley.edu/glossary/gl
   
   
2. Tracheae
   The larger respiratory tubes leading from the spiracles in insects.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. Tracheae
   • (pl. ) of Trachea
   Found on http://thinkexist.com/dictionary/meaning
   
   
4. Tracheae
   The air tubes in insects; in spiders, tubular respiratory organs of different origin; by many thought to be modified book lungs.
   Found on http://www.xs4all.nl/~ednieuw/Spiders/Sp
   
   
5. Tracheae
   Tubes through which air is carried around the body and which open at the spiracles.
   Found on http://www.xs4all.nl/~ednieuw/Spiders/Sp
   
   
6. Tracheae
   Breathing tubes of insects; tracheae open into the spiracles on the abdomen's surface.
   Found on http://pages.prodigy.net/dscribner/bees/