(chemistry) a process in which one or more substances are changed into others
a bodily process occurring due to the effect of some antecedent stimulus or agent
a period of time considered as a resource under your control and sufficient to accomplish something
an indefinite period (usually marked by specific attributes or activities)
the continuum of experience in which events pass from the future through the present to the past
a person's experience on a particular occasion
a reading of a point in time as given by a clock
