spiracle
UK /ˈspɪɹəkəl/ US /ˈspirək(ə)l/
noun 3
Definitions
noun
1
A pore or opening used (especially by arthropods and some fish) for respiration.
2
The blowhole of a whale, dolphin or other similar species.
3
Any small aperture or vent for air or other fluid.
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