| 释义 |
gravigrade, a. and n. Zool.|ˈgrævɪgreɪd|
[f. mod.L. Gravigrada (see below), f. gravi-s heavy + grad-ī to step, walk.]
A. adj. ‘Walking heavily’; of or belonging to the extinct edentate group Gravigrada, which, includes the Megatherium and the Mylodon.
1884in Cassell.
B. n. A name formerly given to heavy-paced animals, such as the elephant; now, an animal of the group Gravigrada (see A).
1847Craig, Gravigrades, a name given by Blainville to Mammalia, comprising such heavy-paced animals as the elephant. 1849Sk. Nat. Hist., Mammalia III. 109 MM. Blainville and Duméril consider the dinotherium to have been allied to the lamantins, or ‘aquatic gravigrades’. 1899Westm. Gaz. 31 July 3/2 He regards it as a living representative of the Gravigrades of Argentina, and has given it the name of Neo-Mylodon Listai. |