| 释义 |
‖ marsupium|mɑːˈsjuːpɪəm|
Also 9 (after Gr.) marsupion, marsypion.
[L. marsūpium, marsuppium, ad. Gr. µαρσύπιον, -σίπιον, dim. of µάρσιπος purse, bag.]
In various scientific uses: A bag or pouch, or something resembling a pouch.
1. Zool.
a. The bag or pouch of a marsupial.
1698Tyson Anat. Opossum 11 Herein all agree, that the use of this Bag, Pouch, or Marsupium, is for the Preservation of the Young Ones, and securing them upon any Occasion of Danger. 1825Zool. Jrnl. I. 406 The difference..is solely in the fœtal domicile; we call it matrix in the one, and pouch, or marsupium in the others. 1839Penny Cycl. XIV. 450 Their young..attach themselves by the mouth to the teats, which are situated in the marsupium, or pouch, of the mother. 1891Flower & Lydekker Introd. Mammals 160 All the species have a marsupium or pouch formed by a fold of the skin of the abdomen.
b. A pouch for similar use in other animals, e.g. a receptacle for eggs in certain crustaceans, marsipobranchiate fishes, etc.
1843Owen Lect. Comp. Anat. Invertebr. 289 The development of the ovum takes place in this temporary marsupium. 1851–6Woodward Mollusca 245 In Cyclas the inner gills form the marsupium, and only from 10 to 20 of the fry are found in them at one time. 1896Kirkaldy & Pollard tr. Boas' Text Bk. Zool. 214 The Isopoda possess a marsupium under the thorax, formed of the lamellate appendages of the basal joints of the thoracic limbs.
c. A folded or corrugated vascular membrane in the eye of a bird; = pecten 3 a.
1795Home in Phil. Trans. LXXXVI. 16 In the eyes of birds there is a substance which is peculiar to that class of animals, called the marsupium. 1841–71T. R. Jones Anim. Kingd. (ed. 4) 779 A vascular organ, called the marsupium or pecten, which is lodged in the posterior part of the vitreous humour.
2. Anat.
a. The large sac of the peritoneum (Syd. Soc. Lex. 1889).
b. A term for the scrotum (Ibid.).
c. The alar ligaments of the knee-joint (Cent. Dict.).
3. Surg. (See quot.)
1855Dunglison Dict. Med. (ed. 12), Marsupion, a sac or bag, with which any part is fomented. |