Particular mines were open only for discrete periods in history.

Most books present hypnosis as something that you sit down and do with yourself or someone else for a discrete period of time, usually to solve problems.

Momoyama, which exists as a discrete period mostly for art historians, lasted less than half a century.

Whether they learn their home stream's distinctive smell during a discrete sensitive period is undecided.

In this way, he was the first to establish an evidence-based division of prehistory into discrete periods.

The lake has been completely dry during several discrete periods of its geologic history.

The model divides time between now and the option's expiration into N discrete periods.

Murasaki's diary covers a discrete period, most likely from 1008 and 1010.

The volumes are written as "a narrative in discrete periods of time," which the author calls a "knot."

And thought how odd it was to feel your life jumping between two discrete, distinctive periods in time, each with its own particular reality.