A person’s sex hormones as held to influence behaviour or mood
A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
A hormone, such as oestrogen or testosterone, affecting sexual development or reproduction
A hormone which stimulates growth in animal or plant cells, especially (in animals) that secreted by the pituitary gland
Any of a number of hormones regulating larval development in insects and inhibiting metamorphosis
Another term for gonadotrophin.
Another term for prolactin.
A gland next to the thyroid which secretes a hormone (parathyroid hormone) that regulates calcium levels in a person’s body
A natural hormone in cattle that helps regulate growth and milk production and that may be produced artificially and given to dairy cattle to increase the yield of milk
A hormone secreted by the anterior pituitary gland which promotes the formation of ova or sperm
A hormone secreted by the pituitary gland that is involved in pigmentation changes in some animals