stickiness
noun /ˈstɪkinəs/
  /ˈstɪkinəs/
[uncountable]- the fact of being made of or covered in a substance that sticks to things that touch it
- The layer of stickiness on the floors has been removed.
 - the stickiness of the soil
 
 - (informal) the fact of being or feeling hot and slightly wet
- The stickiness of summer had subsided.
 
 - the quality in a website of being so interesting that people continue visiting it or watching it
- The idea is to increase ‘stickiness’—the time a customer spends on the site.