dripper

noun4

1. •
   Agent noun of drip: one who drips.
2. •
   Synonym of drip tip.

   • However, there are actually two ways of delivering the tasty flavoring (and nicotine, if you’re into that) into your mouth using an atomizing method; you could use a tank, or you could use a dripper. — 2018
3. •
   An outlet in the microtubing used in drip irrigation.
4. •
   A dripping cake.