Strong's Greek #455
ἀνεῳχθῆναι

Englishman's Concordance (References)

ἀνεῳχθῆναι aneōchthēnai — 1 Occurrence

Luke 3:21 - V-ANP
GRK:καὶ προσευχομένου ἀνεῳχθῆναι τὸν οὐρανὸν
NAS: heaven was opened,
KJV: praying, the heaven was opened,
INT: and praying was opened the heaven