spiracle
/spahy-ruh-kuhl, spir-uh-/US // ˈspaɪ rə kəl, ˈspɪr ə- //UK // (ˈspaɪərəkəl, ˈspaɪrə-) //
漩涡,漩涡状,漩涡状物,漩涡效应
Definitions
n.名词 noun
- 1
- : a breathing hole; an opening by which a confined space has communication with the outer air; air hole.
- : Zoology. an aperture or orifice through which air or water passes in the act of respiration, as the blowhole of a cetacean.an opening in the head of sharks and rays through which water is drawn and passed over gills.one of the external orifices of the tracheal respiratory system of certain invertebrates, usually on the sides of the body.
Examples
The researchers found that when Tiktaalik slid its palate around, its own spiracles would have expanded, perhaps enhancing its ability to breathe air.
Small capitate processes or organs, observable under the wings of Diptera, attended by a spiracle.
The first cleft is no longer similar to the rest, but has commenced to be metamorphosed into the spiracle.
The external gills project from all the gill-slits including the spiracle.
But the first has already atrophied considerably, and may easily be recognized as the spiracle.
Spiracle, spir′a-kl, n. a breathing-hole: any minute passage.
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