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 (kwŏd′rə-pĕd′l, kwŏ-dro͞o′pə-dl) or quad·ru·ped (kwŏd′rə-pĕd′)
1. Having four feet; four-footed.
2. Walking on four feet.

quad′ru·ped′al·ism (-pĕd′l-ĭz′əm) n.
quad′ru·ped′al·ly adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.quadrupedal - having four feet
biped, bipedal, two-footed - having two feet
References in classic literature ?
My Dog-man imperceptibly slipped back to the dog again; day by day he became dumb, quadrupedal, hairy.
It might have been no more than shock and accident; but there was something ungainly and unnatural about the quadrupedal posture and the gaping face.
Seeing him thus quadrupedal in the grass, the priest raised his eyebrows rather sadly; and for the first time guessed that "fancies things" might be an euphemism.
Animal Flow is an innovative fitness program that combines quadrupedal and ground-based movement with elements from various bodyweight-training disciplines to create a fun, challenging workout emphasizing multi-planar, fluid movement.
It includes running, climbing, swinging, vaulting, jumping, rolling, quadrupedal movement, and is said to have some aspects of a non-combative martial art.
StarlETH: A compliant quadrupedal robot for fast, efficient, and versatile locomotion.
They possessed some adaptations for aquatic life, but many remained quadrupedal with the ability to locomote on land.
It is usually through running, jumping, climbing and quadrupedal movement.
Sangbae Kim, Massachusetts Institute of Technology, Development of tele-operated quadrupedal robotic platform for disaster response
This is embedded in the very history of dinosaur fossils, as in Gideon Mantell's historic discovery of the iguanodon, which switched between bipedal and quadrupedal before being, ultimately, classified as both--a complicated history muddied further by early palaeontologists' tendency to throw ambiguous fossil discoveries under the 'iguanodon' banner.
In this procedure, the animal can be kept sedated in the quadrupedal position; sinus access occurs through trepanation, which allows for the introduction of endoscopes (PERKINS et al.
2015) used healed bone fractures in nonavian dinosaurs to infer shifts from a bipedal to quadrupedal posture in extinct Maiasura.