n.
a synthetic analogue of gonadotrophin-releasing hormone (see LHRH analogue), administered by intravenous injection to stimulate the production of pituitary gonadotrophins. It is used in the treatment of amenorrhoea and certain types of infertility.
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go·na·do·rel·in (gə-nad″o-relґin) synthetic luteinizing hormone–releasing hormone, structurally identical to the natural hormone.Medical dictionary. 2011.