English-Thai Dictionary
spiracle
N รู เปิด hole ru-poed
Webster's 1828 Dictionary
SPIRACLE
n.[L. spiraculum, form spiro, to breathe. ] 1. A small aperture in animal and vegetable bodies, by which air or other fluid is exhaled or inhaled; a small hole, orifice or vent; a pore; a minute passage; as the spiracles of the human skin.
2. Any small aperture, hole or vent.
Webster's 1913 Dictionary
SPIRACLE
Spir "a *cle, n.Etym: [L. spiraculum, fr. spirare to breathe: cf. F.spiracule. See Spirit. ]
1. (Anat. )
Defn: The nostril, or one of the nostrils, of whales, porpoises, and allied animals.
2. (Zoöl.) (a ) One of the external openings communicating with the air tubes or tracheæ 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.
New American Oxford Dictionary
spiracle
spi ra cle |ˈspirəkəl, ˈspī -ˈspaɪrəkəl | ▶noun Zoology an external respiratory opening, esp. 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. DERIVATIVES spi rac u lar |spiˈrakyələr, spī - |adjective ORIGIN late 18th cent.: from Latin spiraculum, from spirare ‘breathe. ’
Oxford Dictionary
spiracle
spiracle |ˈspʌɪrək (ə )l | ▶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. DERIVATIVES spiracular |-ˈrakjʊlə |adjective ORIGIN late 18th cent.: from Latin spiraculum, from spirare ‘breathe ’.
The Wordsmith Dictionary