The work of kneeling and coming in contact with the forehead into the surface.
An obsequious work.
The work of kowtowing.
The prostration made by mandarins and others with their superiors, either as homage or worship, by knocking the forehead on a lawn; same as kotow. You can find degrees into the rite, the highest being expressed by three knockings.
a former Chinese customized of coming in contact with the floor with the forehead as a sign of value or submitting