| 释义 |
‖ manubrium|məˈnjuːbrɪəm|
Pl. manubria, manubriums.
[L. manubrium a haft.]
†1. A handle or haft. Obs.
1660Boyle New Exp. Phys. Mech. Proem. 14 The third piece of this Pump, namely, the handle or manubrium.
2. Anat. and Zool.
a. The broad upper division of the sternum of mammals, with which the two first ribs articulate.
b. A small tapering curved or twisted bony process of the malleus of the ear in man and many mammals.
c. A small process, often bifurcate, at the root of the keel of the sternum in birds.
d. The lower part of the malleus in rotifers.
e. A peduncle which depends from the roof of the gonocalyx of hydroids or of the swimming-bell of medusæ.
1848Quain's Anat. (ed. 5) I. 101 The first division of the sternum (manubrium or handle) is broader and thicker than the other. 1855Gosse in Phil. Trans. CXLVI. 426 The inferior portion of the malleus, which I shall call the manubrium, is an irregularly-curved piece [etc.]. Ibid. 427 The manubria move also at the same time. 1885Romanes Jelly-Fish 206 Unlike the manubriums of most of the other Medusæ [etc.]. 1890Coues Field & Gen. Ornithol. 214 The sternum..develops in the middle line in front a beak-like process called the rostrum or manubrium.
3. Bot. A process projecting from each of the shields forming the inner wall of the antheridium in characeous plants.
1875Bennett & Dyer tr. Sachs' Bot. 285 Fig. 198..B a manubrium with its head. |