a series of values of a variable taken in successive periods of time
time series in American English
noun
a set of observations, results, or other data obtained over a period of time, usually at regular intervals
Monthly sales figures, quarterly inventory data, and daily bank balances are all timeseries
Word origin
[1890–95]This word is first recorded in the period 1890–95. Other words that entered Englishat around the same time include: blip, cholesterol, historicism, masochism, phoneme
Examples of 'time series' in a sentence
time series
The nature of many financial forecasts is to offer a single time series.
Globe and Mail (2003)
Sometimes this is combined with failing to look at a sufficiently lengthy time series to properly understand the economic data.