Obs. rare. [f. as prec. + -URE.] State of compression or contraction; concr. a name given by Grew to the neck or collum of plants.
1671. Grew, Anat. Plants, I. iii. § 1. The Coarcture: I cannot say of the Root, nor of the Trunk; but … standing betwixt them, and so being common to them both. Ibid., I. iii. § 21. The Sap … in the Root … passing through the intermediate Coarcture … is entertain’d at last into the Trunk.
