SAT (SATs plural) The SAT is an examination which is often taken by students who wish to enter a college or university. SAT is an abbreviation for `Scholastic Aptitude Test'. (AM) n-proper Sat. Sat. is a written abbreviation for Saturday. sat. Sat is the past tense and past participle of sit.
Secrete is defined as to hide, or to produce and release a liquid. 1  An example of secrete is to put the house key in a secret location. 2  An example of secrete is for the body to produce sweat.
Secretin. A hormone secreted by the small intestine (duodenum) in response to low pH (e.g., from stomach acid). It promotes the release of bicarbonate from the pancreas to act as a buffer.