An endocrine gland is a type of gland that secretes hormones directly into the bloodstream. The four endocrine glands mentioned in the crossword are the ADRENAL, thyroid, ovary, and pituitary glands. The ADRENAL gland is located near the kidneys and produces hormones such as cortisol and adrenaline. The thyroid gland is located in the neck and produces hormones that regulate metabolism. The ovary is located in the female reproductive system and produces hormones such as estrogen and progesterone. Lastly, the pituitary gland is located at the base of the brain and produces hormones that regulate growth and other body functions.