| 释义 |
pronation Physiol.|prəʊˈneɪʃən|
[= F. pronation, ad. med.L. prōnātiōn-em, n. of action f. prōnāre: see prec.]
The action of pronating; the putting of the hand or fore limb into the prone position, i.e. with the palmar surface downwards (if the limb be stretched forward horizontally) or backwards (if it be hanging vertically); the position or condition of being pronated. (Sometimes applied to a similar movement of the tibia in the hind limb.) Opp. to supination.
1666J. Smith Old Age (1676) 62 They [the muscles] can perform adduction, abduction; flexion, extension; pronation, supination. 1745Amyand in Phil. Trans. XLIII. 296 A gummatous Swelling upon the upper Head of the Radius on the right Arm, checking the Motion of this Bone in Pronation and Supination. 1872Humphry Myology 42 In the hind limb..the muscular force is..less expended on the pronation of the tibia.
†b. The action of placing (a body, etc.) in a prone position. Obs.
1698Tyson in Phil. Trans. XX. 118 The First Pair of Muscles..which..came to be dissected, upon the Pronation of the Animal. |