Definition of spiracle in English:

spiracle

Pronunciation /ˈspirəkəl/ /ˈspɪrəkəl/ /ˈspīrəkəl/ /ˈspaɪrəkəl/

Translate spiracle into Spanish

noun

Zoology
  • 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.

    ‘Catsharks have moderately large spiracles, or respiratory openings, and five pairs of gill slits.’
    • ‘Insects ‘breathe’ through a tracheal system, with external openings called spiracles and increasingly finely branched tubules that carry gases right to the metabolizing tissues.’
    • ‘Its spiracles located behind the eyes allow the guitarfish to remain under the sand for long periods of time and breathe easily by flushing clean water over the gills.’
    • ‘There is a hole called a spiracle behind each eye.’
    • ‘It has long been suggested that insects close the spiracles to prevent desiccation, minimizing water loss but exposing themselves to hypoxic stress.’

Origin

Late 18th century from Latin spiraculum, from spirare ‘breathe’.