red blood cell , RBC (skrót)
red corpuscle

But the attrition rate of her red corpuscles is increasing.

Any woman with an active red corpuscle would be.

"And we'll find every red corpuscle has been drained from their blood."

Did my father give me a different sort of red or white corpuscle in my blood?

"It's lentil-shaped and only half the size of the red corpuscles."

There should be one of them to every twenty red corpuscles.

He could not actually get a clear look at the tiling, either, for the red corpuscles were in the way.

Then a platelet went slipping between the red corpuscle and the wall, but very slowly.

Second, the ship was overtaking one red corpuscle after another.

"I suppose you put in new blood as the old red corpuscles break down?"