Also his thermo-gun was still operating so that if he turned toward them it would mean extinction.

Of course I meant extinction not distinction.

"It means extinction for the polar bears but you might say "What does it mean for world trade?

A hundred years earlier, even fifty years earlier, it would very likely have meant extinction.

That time may mean old age and extinction to these people.

In space, the disorder that soon or late follows breakdown, it would mean extinction.

The extinction of either member in such a relationship would mean almost certain extinction of the other member as well.

Having to get the whole Congress on the ark - didn't that mean extinction for a lot of interesting animals?

For any other species of animal it would mean utter extinction, but we have what the other animals have never had mind.

She had only wanted the best for her people, even if that meant extinction for the rest of humanity.