What is "resupination"

Resupination \Re*su`pi*na"tion\, n. The state of luing on the back; the state of being resupinate, or reversed.

Our Vitruvius calleth this affection in the eye a resupination of the figure.
--Sir H. Wotton.

n. The state of lie on the back; the state of being resupinate, or reversed.

Resupination generally means being upside-down, supine, facing upward. The word is derived from the Latin. In a biological context, the concept is commonly expressed with the adjectives "resupinate" or "non-resupinate."