oxytocinasen.
/ˌɒksɪˈtəʊsɪneɪz/, U.S. /ˌɑksəˈtoʊsəˌneɪz/, /ˌɑksəˈtoʊsəˌneɪs/ Physiology.
An enzyme which inactivates oxytocin and certain other peptides, and which is chiefly produced in the placenta during pregnancy.
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oxytocinase1948
1948 Science 10 Dec. 658/1 Page..pointed out that oxytocinase differs from hypertensinase in its behavior during the course of normal pregnancy.
1974 R. Passmore & J. S. Robson Compan. Med. Stud. III. ii. xl. 1/2 A serum oxytocinase which rapidly inactivates oxytocin appears in increasing amounts during pregnancy.
1994 D. Tulchinsky & A. B. Little Maternal–Fetal Endocrinol. (ed. 2) xi. 172/2 Pregnancy zone proteins, such as α-fetoproteins and oxytocinase, can be detected in plasma many weeks' postpartum, suggesting that they are not derived solely from placenta.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1948