| 释义 |
‖ carina Zool. and Bot.|kəˈraɪnə|
[L. carīna keel.]
Applied to various structures of the form of a keel or ridge; esp.a. the two petals forming the base of a papilionaceous corolla; b. the median ridge on the mericarp of an umbelliferous fruit; c. the median ridge on the sternum of birds; d. the dorsal single plate of the shell of Cirripedes; e. the vertebral column of an embryo. (Syd. Soc. Lex.)
1704J. Harris Lex. Techn., Carina, is a Term used..by the Anatomists for the first Rudiments of the intire Vertebræ, as they appear in a Chicken's Embryo..because it is crooked in the form of the Keel of a Ship. 1774Garden in Phil. Trans. LXV. 104 This carina, or keel, is very distinguishable..by its thinness, its apparent laxness. 1828Stark Elem. Nat. Hist. II. 187 Dorsal carina prolonged and pointed. 1842Gray Struct. Bot. (1880) 185 In a Papilionaceous Corolla..the two anterior [petals]..partly cohering to form a prow-shaped body, the Carina or Keel. 1872Nicholson Palæont. 151 The compartment at the end of the shell where the animal thrusts out its cirrated limbs, is called the ‘carina’. 1872Oliver Elem. Bot. App. 304 Alæ roundish, converging, shorter than the compressed, curved carina.
▸ Astron. In form Carina. (The name of) a constellation of the southern hemisphere between Volans and the Milky Way; the Keel. Also (in form Carinae) used as a postmodifier in the names of stars belonging to this constellation. Abbreviated Car (without point).
The constellation was formed, together with Puppis, Pyxis, and Vela, from the division of the former constellation Argo in the 19th cent.
[1834Penny Cycl. II. 309/1 Owing to the extent of this constellation, it is usual to subdivide it into four... They are named as follows: Argo, Argo in Carina.., Argo in Puppi.., Argo in Velis.] 1845J. Herschel in Rep. Brit. Assoc. Advancem. Sci. 1844 41 As regards the southern constellations, the following are the principles proposed to be adhered to: viz...5°. That Argo be divided into four separate constellations, as partly contemplated by Lacaille; retaining his designations of Carina, Puppis and Vela; and substituting the term Malus for Pixis Nautica, since it contains four of Ptolemy's stars that are placed by him in the mast of the ship, since it contains four of Ptolemy's stars that are placed by him in the mast of the ship. 1906Science 23 Mar. 447/1 A few stars were assigned to several subdivisions.., the most marked case being S Carinae. 1929H. Shapley & H. E. Howarth Source Bk. Astron. 239 (caption) The diffuse galactic nebula of η Carinae (Argus). 1990Daily Tel. 10 May 13/1 The telescope..had been searching for a cluster in the Carina constellation. 1995Monthly Notices Royal Astron. Soc. 273359/1, η Carinae is a massive and very luminous variable star. |