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countable and uncountable, plural coarctations
(pathology) A congenital stricture or narrowing of a short section of the aorta.
(obsolete) A confinement to a narrow space. quotations
So likewise the greatest winds, if they have no coarctation, or blow not hollow, give an interior sound
1631, Francis [Bacon], “II. Century.”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. […], 3rd edition, London: […] William Rawley; [p]rinted by J[ohn] H[aviland] for William Lee […]
(obsolete) A pressure; that which presses. quotations
the vessel will notwithstanding continue still to beat below or beyond the coarctation
1691, John Ray, The Wisdom of God Manifested in the Works of the Creation. […], London: […] Samuel Smith, […]