apneustic

[ap-noo-stik, -nyoo-]

adjective Entomology.

having no open spiracles, as the tracheal systems of certain aquatic insect larvae.

Origin of apneustic

a-⁶ + Greek pneustikós pertaining to breathing, equivalent to *pneust(os) (verbid of pneîn to breathe) + -ikos -ic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for apneustic

Historical Examples of apneustic

Apneustic: without an open tracheal system; respiration is through the skin or through tracheal gills.
Explanation of Terms Used in Entomology
John. B. Smith

British Dictionary definitions for apneustic

apneustic

adjective

of or relating to apneusis

(of certain animals) having no specialized organs for respiration

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012