| 释义 |
diplarthrous, a. Zool.|dɪˈplɑːθrəs|
[f. Gr. διπλό-ος double + ἄρθρ-ον joint + -ous.]
Having the carpal or tarsal bones doubly articulated, i.e. the several bones of one row alternating with those of the other, as in ungulate mammals: opp. to taxeopodous. So diˈplarthrism, the condition of being diplarthrous.
1887E. D. Cope in Amer. Nat. XXI. 987 All ungulates in passing from the taxeopodous to the diplarthrous stages, traversed the amblyopodous. Ibid. 988 The advance of diplarthrism is in direct ratio to the advance of digitigradism, for the greater the length of the foot, the greater is the elasticity of the leg, and the greater is the torsion. |