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: a breathing hole : vent
: a breathing orifice: such as
: blowhole sense 2
: an external tracheal aperture of a terrestrial arthropod that in an insect is usually one of a series of small apertures located along each side of the thorax and abdomen — see insect illustration
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These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spiracle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
15th century, in the meaning defined at sense 1
Middle English, from Latin spiraculum, from spirare to breathe
Resources for spiracle
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More Definitions for spiracle
: an opening on the body (as of an insect) used for breathing
More from Merriam-Webster on spiracle
Britannica.com: Encyclopedia article about spiracle
Comments on spiracle
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something that serves to warn or remind
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