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Definition of vasopressin
: a polypeptide hormone secreted by the posterior lobe of the pituitary gland or obtained synthetically that increases blood pressure and decreases urine flow —called also antidiuretic hormone
From the M-W Editors
Recent Examples of vasopressin from the Web
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In his own research with rats and voles, vasopressin promoted some maternal behaviors.
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The compound seems to work by targeting the action of a receptor called the type-2 vasopressin receptor, which is involved in the disease, the researchers said.
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But when rats have young, a surge of vasopressin helps push them to start caring for their pups.
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Hormones like vasopressin and oxytocin are key in helping create a sense of closeness in relationships and play a starring role in both scenarios.
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For example, in both species the hormone oxytocin modulates maternal bonding (loving) behaviors, while vasopressin accomplishes the task in males.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vasopressin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of vasopressin
from Vasopressin, a trademark
Medical Dictionary
vasopressin
playMedical Definition of vasopressin
: a polypeptide hormone that is secreted together with oxytocin by the posterior lobe of the pituitary gland, is also obtained synthetically, and increases blood pressure and exerts an antidiuretic effect—called also antidiuretic hormone, beta-hypophamine; see arginine vasopressin, lysine vasopressin, pitressin
Learn More about vasopressin
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Britannica.com: Encyclopedia article about vasopressin
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