tra·che·ole 
(trākē-ōl′)
(trākē-ōl′)n.
One of the very small, branching tubes at the tips of the tracheae of an arthropod. Oxygen and carbon dioxide diffuse through the walls of the tracheoles.
[New Latin trāchēola, diminutive of Medieval Latin trāchēa, trachea; see TRACHEA.]
tra·cheo·lar (-ə-lər) adj.
- chemokine
- chemolithoautotroph
- chemolithoautotrophic
- chemolithoautotrophy
- chemolithotroph
- chemolithotrophic
- chemolithotrophy
- chemoprevention
- chemopreventive
- chemoprophylactic
- chemoprophylaxis
- chemoreception
- chemoreceptive
- chemoreceptivity
- chemoreceptor
- chemosensory
- chemosorb
- chemosorb
- chemosphere
- chemosurgery
- chemosurgical
- chemosynthesis
- chemosynthetic
- chemosynthetically
- chemotactic