Skip to Content


Pronunciation: spi'ra-kel, spir-

Definition: An aperture for breathing in arthropods and cetaceans; a similar opening in sharks and related fishes.

[L. spiraculum, fr. spiro, to breathe]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.