cud

noun1

1. •
   The portion of food which is brought back into the mouth by ruminants from their rumen, to be chewed a second time.

verb1

1. •
   To bring back into the mouth and chew a second time.

noun2

1. •
   Initialism of cannabis use disorder.

   • The study’s authors stated that in 2021, CUD played an integral role in 15% of cases occurring in men aged 16 to 49, and in 4% of cases affecting women in the same age range. — 2023
2. •
   Acronym of create, update, delete, the basic operations of a database management system.