prone
If something is Prone it has fallen over, been knocked down, and is on the ground. It gains the Immobile and Vulnerable Traits. It takes a Turn Action to get up from being prone.
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Salvage Union Workshop ManualPage 42

If something is Prone it has fallen over, been knocked down, and is on the ground. It gains the Immobile and Vulnerable Traits. It takes a Turn Action to get up from being prone.

Source: Salvage Union Workshop Manual, p. 42