Endocrine gland

Endocrine glands are glands that secrete their product (hormones) directly into the blood. This group contains the glands of the endocrine system.  

The main endocrine glands are the pituitary gland, the pancreas, the gonads, the thyroid gland and the adrenal glands.  Other organs which are not so well known for their endocrine activity include the stomach, which produces such hormones as ghrelin.
 Reference 
 Medical definition of Endocrine gland from the medicineneet website 

Category:Endocrine system
Category:Glands