1) Air hole 2) Opening 3) Orifice 4) Porta
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https://www.crosswordclues.com/clue/spiracle
1) Air pipe 2) Blowhole 3) Hole 4) Vent
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https://www.crosswordclues.com/clue/spiracle
Respiratory openings on the thorax and abdomen that allow air to enter the trachea.
Found on
http://en.wikipedia.org/wiki/Glossary_of_entomology_terms
External opening of the breathing system, usually round or oval in shape
Found on
http://entomology.ifas.ufl.edu/choate/insectclass/glossary_terms.htm
The small opening to the outside from the gill chamber in anuran tadpoles (Peters 1964).
Found on
http://imnh.isu.edu/digitalatlas/bio/glsry.htm
breathing hole; orifice; vent
Found on
http://phrontistery.info/s.html
• (n.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals. • (n.) A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft. • (n.) Any small aperture or vent for air or other fluid. • (n.) One of the external openings commun...
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http://thinkexist.com/dictionary/meaning/spiracle/
in arthropods, the small external opening of a trachea (respiratory tube) or a book lung (breathing organ with thin folds of membrane resembling ... [6 related articles]
Found on
http://www.britannica.com/eb/a-z/s/141
One of the breathing pores - openings of the tracheal system - through which diffusion of gases takes place
Found on
http://www.earthlife.net/insects/glossary.html
a respiratory opening located behind the eyes.
Found on
http://www.encyclo.co.uk/local/20126
1. <anatomy> The nostril, or one of the nostrils, of whales, porpoises, and allied animals. ... 2. <zoology> 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. Th...
Found on
http://www.encyclo.co.uk/local/20973
An uncommonly used name for the blowhole.
Found on
http://www.encyclo.co.uk/local/21699
the opening of the respiratory system located along the lateral side of the body.
Found on
http://www.encyclo.co.uk/local/22036
Spir'a·cle noun [ Latin
spiraculum , from
spirare to breathe: confer French
spiracule . See
Spirit .]
1. (Anat.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals.
2. (Zoology) (a) One of the external open...
Found on
http://www.encyclo.co.uk/webster/S/165
One of the breathing pores - openings of the tracheal system - through which diffusion of gases takes place
Found on
http://www.geog.ubc.ca/biodiversity/efauna/InsectGlossary.html
A respiratory opening on the back of the head above and behind each eye. Some species of sharks have them, some don't and their size depends on the species. Most commonly found in benthic sharks.
Found on
http://www.pelagic.org/biology/glossary.html
(L: spirare to breath) the first gill slit in many fish, usually closed up in the adult. In higher animals the spiracle becomes part of the middle ear. The spiracle developed in a dorsal opening into the gill cavity of sharks and rays that enables water to be drawn through the gills when the mouth is closed or when lying on the bottom.
Found on
http://www.seafriends.org.nz/books/glossary.htm
In insects and some other terrestrial arthropods, a small opening through which air is taken into the tracheae. Insects have several spiracles, arranged along the sides of the abdomen.
Found on
http://www.ucmp.berkeley.edu/glossary/gloss7metazoa.html
In insects and some other terrestrial arthropods, a small opening through which air is taken into the tracheae. Insects have several spiracles, arranged along the sides of the abdomen.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_7.html
Opening behind the eye in some sharks which directs oxygen to the eye and brain, and aids water flow over the gills.
Found on
http://www.world-of-sharks.com/shark-glossary.html
A breathing pore or orifice leading to tracheae or book lungs.
Found on
http://www.xs4all.nl/~ednieuw/Spiders/Spiderglossary.htm
openings on the thorax and abdomen of insects that allow the insect to breathe.
Found on
https://www.amentsoc.org/insects/glossary/begins/with/s/
noun a breathing orifice
Found on
https://www.encyclo.co.uk/local/20974
In insects, the opening of a trachea, through which oxygen enters the body and carbon dioxide is expelled. In cartilaginous fishes (sharks and rays), the same name is given to a circular opening that marks the remains of the first gill slit. In tetrapod vertebrates, the spiracle of early fishes has evolved into the Eustachian tube, which connects t...
Found on
https://www.encyclo.co.uk/local/21221
a breathing pore or aperture. Spiracles are paired, lateral holes in the plural (side) wall of insect body segments and are the means by which air enters the tracheal (respiratory) system.
Found on
https://www.encyclo.co.uk/local/22345
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