名詞 releasing factor:

1. a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland
   同義詞：releasing hormone, RF
2. any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones; each of these hormones causes the anterior pituitary to secrete a specific hormone
   同義詞：releasing hormone, RH, hypothalamic releasing hormone, hypothalamic releasing factor