penetrate

pen·e·trate

\ˈpen-ə-ˌtrāt\ verb

pen·e·trat·edpen·e·trat·ing

Definition of PENETRATE

transitive verb

1

: to pass into or through <enzymes that help the sperm penetrate the zona pellucida—Anna Maria Gillis>

2

: to insert the penis into the vagina of in copulation

intransitive verb

: to pass, extend, pierce, or diffuse into or through something <penetrating percutaneous nephroscopy or ureteroscopy—R. A. Riehle et al>