noun Ar·di·pi·the·cus \ˌär-də-ˈpi-thə-kəs, -pə-ˈthē-\

Definition of Ardipithecus

  1. :  a genus of extinct early hominids known from skeletal remains from northeastern Ethiopia that includes two identified species (A. ramidus and A. kadabba) having a grasping big toe and capable of some form of upright walking The Ardipithecus genus is a group that lived between 5.8 and 4.3 million years ago. — Charles Lockwood, The Human Story, 2008 Originally placed in Australopithecus, Ardipithecus is a genus represented by an accumulating number of specimens from sites like Aramis in the Middle Awash region of Ethiopia. — Holly M. Dunsworth, Human Origins 101, 2007 —sometimes used as a general name for hominids of this genus Its wrists, elbows, feet, and hands suggest that Ardipithecus clambered about in trees by putting weight on the hands. — Jon Cohen, Almost Chimpanzee, 2010

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Origin and Etymology of ardipithecus

borrowed from New Latin, from Afar ard, ardi “earth, land, ground” (borrowed from Arabic arḍ) + New Latin -pithecus -pithecus

First Known Use: 1995

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feeling or affected by lethargy

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