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单词 gravigrade
释义

gravigradeadj.n.

/ˈɡravɪɡreɪd/
Etymology: < modern Latin Gravigrada (see below), < gravis heavy + gradī to step, walk.
Zoology.
A. adj.
‘Walking heavily’; of or belonging to the extinct edentate group Gravigrada, which, includes the Megatherium and the Mylodon.
ΚΠ
1884 in Cassell
B. n.
A name formerly given to heavy-paced animals, such as the elephant; now, an animal of the group Gravigrada (see A.).
ΘΚΠ
the world > animals > by locomotion > [noun] > that walks > heavily
gravigrade1847
the world > animals > mammals > order Edentata > [noun] > family Bradypodidae (sloth) > extinct sloths
sloth1791
Megalonyx1796
gravigrade1847
ground sloth1860
1847 J. Craig New Universal Dict. Gravigrades, a name given by Blainville to Mammalia, comprising such heavy-paced animals as the elephant.
1849 Sketches Nat. Hist.: Mammalia III. 109 MM. Blainville and Duméril consider the dinotherium to have been allied to the lamantins, or ‘aquatic gravigrades’.
1899 Westm. 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.
This entry has not yet been fully updated (first published 1900; most recently modified version published online September 2018).
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adj.n.1847
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