collision zone

South Korean activists are already planning to loft them over the Demilitarized Zone in balloons.

Worst danger zone, the open sea, now traversed, but on land not yet out of the wood.

He used every artifice to prevent a collision between the French and Neapolitan troops.

When well stained, a delicate hyaline peripheral zone can be distinguished.

A plaque upon a red corpuscle is surrounded by a colorless zone rather than by a distinct blue body.

He must keep a reasonably careful lookout for other travelers in order to avoid collision; also for defects in the highway.