Beyond a certain point the responsibility is more or less undeterminable.

Cause of death, as in the first place, undeterminable.

For the two undeterminable pools, RT-PCR identified one as negative and the other as positive.

He remained asleep for an undeterminable period of time.

Health authorities are particularly concerned about the 145 cases which were acquired from an "undeterminable source."

Results: ELISA assays on 20 plasma pools demonstrated 10 negative samples, 8 positive and 2 undeterminable.

The image of the boy's party faded and resumed the original color of the wall, with a portion swirling into a painting of undeterminable origin.

Sitting on a bench, watching them as a dog watches its master's coat, was a girl of some undeterminable age,-perhapsof ten or twelve years.