(often reflexive) To lie flat or face-down.
(also figurative) To throw oneself down in submission.
To cause to lie down, to flatten.
(figuratively) To overcome or overpower.
Lying flat, face-down.
(figuratively) Emotionally devastated.
Physically incapacitated from environmental exposure or debilitating disease.
(botany) Trailing on the ground; procumbent.