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 is a hormone secreted by the small intestines in the presence of partially digested food from the stomach; this hormone normally stimulates the pancreas to secrete a fluid with a high concentration of bicarbonate.