peptide hormones: a class of hormones biochemically constructed of the same components of which proteins are made. They include neurohormones that govern the hormones secreted by the pituitary gland, e.g., gonadotropin-releasing hormone (GnRH). They include several of the hormones secreted by the pituitary gland, e.g., growth hormone;
see also steroid hormones.
Dictionary of Sexology Project: Main Index