interfinger

inter- +‎ finger

interfinger (third-person singular simple present interfingers, present participle interfingering, simple past and past participle interfingered)

1. (geology) To interpenetrate in long alternating strips like clasped fingers.
   • 2001 May 18, Kevin O. Pope et al., “Origin and Environmental Setting of Ancient Agriculture in the Lowlands of Mesoamerica”, in Science‎, volume 292, number 5520, →DOI, pages 1370–1373:

     The lagoon deposits overlie and interfinger with beach sands in SAV3 and SAV4, which overlie an early Holocene estuary deposit in SAV4.

interfinger (not comparable)

1. (molecular biology) Between two zinc fingers.
   • 1998 January 16, Roberto N. De Guzman et al., “Structure of the HIV-1 Nucleocapsid Protein Bound to the SL3 {Psi}-RNA Recognition Element”, in Science‎, volume 279, number 5349, →DOI, pages 384–388:

     Strong-intensity interfinger NOE cross-peaks observed in the complex, but not for the free protein (26 ), indicate that binding is also promoted by the formation of extensive intraprotein interactions (Fig. 4 B).

• interfering, interfringe