Definition of pituitary noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈtjuːɪtəri//
; NAmE NAmE//ˈtuːəteri//
(also pituitary gland)
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a small organ at the base of the brain that produces hormones that influence growth and sexual development Word Origin early 17th cent.: from Latin pituitarius ‘secreting phlegm’, from pituita ‘phlegm’.
See the Oxford Advanced American Dictionary entry: pituitary