spiracle

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noun spi·ra·cle \ˈspir-i-kəl, ˈspī-ri-\

Definition of spiracle

  1. 1 :  a breathing hole :  vent

  2. 2 :  a breathing orifice: such asa :  blowhole 2b :  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

spiracular

play \spə-ˈra-kyə-lər, spī-\ adjective

Recent Examples of spiracle from the Web

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.

Origin and Etymology of spiracle

Middle English, from Latin spiraculum, from spirare to breathe


SPIRACLE Defined for Kids

spiracle

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noun spi·ra·cle \ˈspir-ə-kəl\

Definition of spiracle for Students

  1. :  an opening on the body (as of an insect) used for breathing


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