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apneustic

American  
[ap-noo-stik, -nyoo-] / æpˈnu stɪk, -ˈnyu- /

adjective

Entomology.

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

apneustic British  
/ æpˈnuːstɪk /

adjective

  1. of or relating to apneusis

  2. (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

Etymology

Origin of apneustic

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The second respiratory center of the brain is located within the pons, called the pontine respiratory group, and consists of the apneustic and pneumotaxic centers.

From Textbooks • Jun. 19, 2013

The apneustic center is a double cluster of neuronal cell bodies that stimulate neurons in the DRG, controlling the depth of inspiration, particularly for deep breathing.

From Textbooks • Jun. 19, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.