Meaning of apneustic | Babel Free

Definitions

1. Of or relating to apneusis.
   not-comparable
2. in tracheal systems: having no open spiracles, as occurs in larvae of certain aquatic insects.
   not-comparable

Equivalents

Examples

“The holopneustic type⟳ of [tracheal] system has all ten pairs of spiracles open⟳, ... while the apneustic type⟳ has no functional spiracles, respiration occurring through the general body surface or gills. The tracheal systems with few or no open⟳ spiracles are found in aquatic and endoparasitic insects ... non-functional spiracles are closed or reduced to minute scars, and each is connected to the longitudinal tracheae by a solid stigmatic cord. The latter helps to anchor the tracheal system in position and serves to pull⟳ out the old tracheal linings when the insect moults.”

CEFR level