Under-control meaning

He was trying to keep the situation under control – for her sake.

In a quiet room with no one looking on, she managed to get her emotions under control by focusing on Destiny.

Running from it was probably the worst thing she could do, but panic had set in and her legs were under control of her mind.

The bivalved carapace has a jointed rostrum, and covers only the front part of the body, to which it is only attached quite in front, the valve-like sides being under control of an adductor muscle.

In the last few years of his life Newton was troubled with incontinence of urine, which was supposed to be due to stone; but with care he kept the disease under control.