\spˈɪɹəkə͡l], \spˈɪɹəkəl], \s_p_ˈɪ_ɹ_ə_k_əl]\
Definitions of SPIRACLE
- 2010 - New Age Dictionary Database
- 1899 - The american dictionary of the english language.
- 1894 - The Clarendon dictionary
- 1914 - Nuttall's Standard dictionary of the English language
- 1874 - Etymological and pronouncing dictionary of the English language
- 1920 - A dictionary of scientific terms.
- 1871 - The Cabinet Dictionary of the English Language
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One of the external openings communicating with the air tubes or tracheae of insects, myriapods, and arachnids. They are variable in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera.
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By Daniel Lyons
By Nuttall, P.Austin.
By Stormonth, James, Phelp, P. H.
By Henderson, I. F.; Henderson, W. D.
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