Things that are secretories are related to the production and release of substances in living organisms, like hormones or enzymes.
Secretories are important for the body to work the right way.
Examples:
The secretories glands release hormones into the body.
The pancreas has secretories cells that release insulin.
She studies secretories organs in the body.
The secretories process in the body is very complicated.
The secretories system helps the body stay healthy.
The doctor learns about the secretories parts of the body in medical school.