Walking or resting with the body horizontal, denoting the posture of quadrupeds; opposed to orthograde. [L. pronus, inclined forward, + gradior, to walk]
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pro·no·grade 'prō-nə-.grād adj walking with the body approximately horizontal <most mammals except humans and the higher apes are \pronograde> compare ORTHOGRADE (1)
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pro·no·grade (proґno-grād) [L. pronus bent downward + gradi to walk] characterized by walking with the body approximately horizontal, such as the quadrupeds. Cf. orthograde.Medical dictionary. 2011.