spiraclenoun [ C ]
uk/ˈspaɪ.rə.kəl/us/ˈspaɪ.rə.kəl/specializedin an insect or spider, one of the small holes that allow air in and out through the surface of the body
in some fish such as sharks, a small hole behind each eye used for breathing, by allowing water through to the gills
Thesaurus: synonyms and related words
Animal physiology: the respiratory system
- air bladder
- air sac
- airway
- alveolar
- arytenoid
- bronchiole
- bronchus
- cardiopulmonary
- cardiorespiratory
- glottis
- larynx
- lung
- oxygen debt
- respiratory system
- trachea
- vocal cords
- voice box
- windpipe