(technology, cryptocurrencies) A software protocol that is capable of automatically enforcing terms agreed upon in a contract.

(rail transport, British spelling) The process of converting a railway to a metro-style service.

An application of mud, clay, etc. to the skin of the face for cosmetic purposes.

(psychology) a state that occurs after a person has experienced a stressful situation repeatedly. They come to believe that they are unable to control or change the situation, so they do not try, e...