A stage or period of development.
In a periodic function (such as rotational or sinusoidal motion), the position relative to a particular part of the cycle.
The term “X” refers to a specific timeframe, circumstance, or operation that is a fundamental component of a series of occurrences or processes. It is imperative that the word retains its diverse range of meanings and not be limited to a narrow definition within the field of plant pathology. As such, X is utilized in bacteriology to identify a distinct phase of a naturally-occurring fluctuation.