Prostration

From Freepedia

prostration (pros-trshn)

1) A marked loss of strength, as in exhaustion.

[L. pro-sterno, pp. -stratus, to strew before, overthrow]

Ref: Stedman's Online Medical Dictionary \ www.stedmans.com

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2) A low bow, that is performed with hands and forhead touching ground. In Chinese rituals is often called kowtow.