Definition of A Time Capsule

Definition of time capsule

: a container holding historical records or objects representative of current culture that is deposited (as in a cornerstone) for preservation until discovery by some future age

2: something resembling a time capsule

• sunken vessels are archaeological time capsules
•  —Philip Trupp

time capsulenoun [ C ] 

UK ​ /ˈtaɪm ˌkæp.sjuːl/ US ​ /ˈtaɪm ˌkæp.səl/

​

a container that is filled with objects considered to be typical of thepresent period in history and then buried, so that it can be dug up andstudied much later

                                                                                                                                             

Sources

http://www.artsandheritage.org.uk

https://www.merriam-webster.com/dictionary/time%20capsule

http://www.timecapsule.com/time-capsule/why-make-a-time-capsule/