ˈVergent, a. Geol.
[ad. L. vergent-, vergens, pr. pple. of vergĕre to verge.]
Constituting, or belonging to, a series of Appalachian strata corresponding in age to the middle Devonian strata of British geologists.
| 1858 H. D. Rogers Geol. Pennsylv. I. 108 Vergent Flags (Portage Flags of New York). Ibid., Vergent Shales (Chemung Group of New York). Ibid. II. 732 The Cadent and Vergent rocks contain important bands of iron ore. |