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spiracle
Definitions
[ˈspʌɪrəkl], (Noun)
Definitions:
- an external respiratory opening, especially each of a number of pores on the body of an insect, or each of a pair of vestigial gill slits behind the eye of a cartilaginous fish
Phrases:
Origin
:
late 18th century: from Latin spiraculum, from spirare ‘breathe’
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definition by Oxford Dictionaries