D defs.my
Entry 2 senses · 2 variants Webster, 1913

Interpenetrate

· In·ter·pen·e·trate · IPA /ɪntɚˈpɛnətɹeɪt/
01 v. t. To penetrate between or within; to penetrate mutually.
  1. 1.
    To penetrate between or within; to penetrate mutually.
    “It interpenetrates my granite mass.” Shelley.
02 v. i. To penetrate each the other; to penetrate between bodies or their parts.
  1. 1.
    To penetrate each the other; to penetrate between bodies or their parts.
Phrases & compounds
Interpenetrating molding — in late Gothic architecture, a decoration by means of moldings which seem to pass through solid uprights, transoms, or other members; often, two sets of architectural members penetrating one another, in appearance, as if both had been plastic when they were put together.