פֶּטֶר

Derivation

or פִּטְרָה; from H6362 (פָּטַר);

Meaning

a fissure, i.e. (concretely) firstling (as opening the matrix)

In the King James Version

firstling, openeth, such as open.

Translated as

openeth (7), firstling (4), open (1)

Where it appears

Found in 10 verses

Exodus

13:2, 13:12, 13:13, 13:15, 34:19, 34:20

Numbers

3:12, 8:16, 18:15

Ezekiel

20:26