Definition of Spiracle. Meaning of Spiracle. Synonyms of Spiracle

Here you will find one or more explanations in English for the word Spiracle. Also in the bottom left of the page several parts of wikipedia pages related to the word Spiracle and, of course, Spiracle synonyms and on the right images related to the word Spiracle.

Definition of Spiracle

Spiracle
Spiracle Spir"a*cle, n.[L. spiraculum, fr. spirare to breathe: cf. F. spiracule. See Spirit.] 1. (Anat.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals. 2. (Zo["o]l.) (a) One of the external openings communicating with the air tubes or trache[ae] 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. (a) A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft. 3. Any small aperture or vent for air or other fluid.

Meaning of Spiracle from wikipedia

- Spiracle or spiraculum may refer to: Spiracle (arthropods), opening in the exoskeletons of some arthropods Spiracle (vertebrates), openings on the surface...
- Spiracles (/ˈspɪrəkəl, ˈspaɪ-/) are openings on the surface of some animals, which usually lead to respiratory systems. The spiracle is a small hole behind...
- A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids to allow air to enter the trachea. In the...
- respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects...
- cetology, the study of whales and other cetaceans, a blowhole is the hole (or spiracle) at the top of the head through which the animal breathes air. In baleen...
- pieces of debris from damaging the delicate gills. A smaller opening, the spiracle, lies in the back of the first gill slit. This bears a small pseudobranch...
- connected to the surroundings through a pair of spiracles, but in the majority of spiders this pair of spiracles has fused into a single one in the middle,...
- internal gills vented by spiracles. Depending on the species, there can be two spiracles on both sides of the body, a single spiracle on the underside near...
- Anatomy - (1) Egg m-micropyle (2) Head o-ocelli s-spiracle (3) s-spiracle m-malphigian tubules g-silk gland (4) a - antenna l-labrum o- ocelli k mandible...
- during non-mating seasons. Spiracles are small openings that allow some fish and amphibians to breathe. Stingray spiracles are openings just behind its...