dwell time
US /ˈdwel taɪm/
UK /ˈdwel taɪm/

1.
the amount of time a vehicle or person spends at a particular place, especially a stop or station
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Reducing bus dwell time at stops can improve public transport efficiency.
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The train's long dwell time at the station caused a delay.
2.
the time spent by a user on a website or a specific page
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Increasing the dwell time on your website can improve its search engine ranking.
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Analytics showed a low dwell time, indicating users quickly left the page.
3.
the time a material or substance remains in a particular system or environment
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The dwell time of the chemical in the reactor is critical for the reaction to complete.
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Optimizing the dwell time in the oven ensures proper baking.