intertongue

English

Etymology

inter- +‎ tongue

Verb

intertongue (third-person singular simple present intertongues, present participle intertonguing, simple past and past participle intertongued)

1. (geology, of strata) To interlock.
   • 1916, Lloyd William Stephenson, Geology and ground waters of northeastern Arkansas, page 149:

     The gently undulating interstream timbered lands border the shallow valleys and intertongue irregularly with the prairie lands.

   • 1977, John Adam Dorr, Deformation and Deposition Between a Foreland Uplift and an Impinging Thrust Belt: Hoback Basin, Wyoming:

     North of Jack Creek, where the Chappo Member intertongues with the Hoback Formation, the Hoback thickens to 2,000 m.