I have googled for „definition of proper time“
This source https://www.collinsdictionary.com/dictionary/english/proper-time gives the following definition:
- proper time ... measured by a clock that has the same motion as the observer. Any clock in motion relative to the observer ... will not, according to the theory of relativity, measure proper time.
However, according to this answer Confusing time dilation - proper time is higher?
„In other words, it is the time registered by a clock that is carried from one event to the other“ exactly the moving clock measures proper time interval and this time interval is the shortest due to time dilation.
Is definition in Collins Dictionary wrong? Please help resolve this contradiction.