pituitrin
/pɪˈtjuːɪtrɪn/ /pɪˈtʃuːɪtrɪn/Pharmacology
noun
An extract of the posterior lobe of the pituitary gland containing the hormones oxytocin and vasopressin (formerly thought to be a single hormone).
Origin
Early 20th century; earliest use found in Progressive Medicine. From pituit- and -r- + -in. Originally a trade name.