G2435 ἱλαστήριον - Strong's Greek Lexicon Number

a sin offering, covering
(a) a sin offering, by which the wrath of the deity shall be appeased; a means of propitiation, (b) the covering of the ark, which was sprinkled with the atoning blood on the Day of Atonement.
an expiatory (place or thing), i.e. (concretely) an atoning victim, or (specially) the lid of the Ark (in the Temple)
Derivation: neuter of a derivative of G2433;

KJV Usage: mercyseat, propitiation.

1) relating to an appeasing or expiating, having placating or expiating force, expiatory; a means of appeasing or expiating, a propitiation
1a) used of the cover of the ark of the covenant in the Holy of Holies, which was sprinkled with the blood of the expiatory victim on the annual day of atonement (this rite signifying that the life of the people, the loss of which they had merited by their sins, was offered to God in the blood as the life of the victim, and that God by this ceremony was appeased and their sins expiated); hence the lid of expiation, the propitiatory
1b) an expiatory sacrifice
1c) a expiatory victim

Neuter of a derivative of G2433; an expiatory (place or thing), that is, (concretely) an atoning victim, or (specifically) the lid of the Ark (in the Temple)

KJV Usage: mercyseat, propitiation.

View how G2435 ἱλαστήριον is used in the Bible

2 occurrences of G2435 ἱλαστήριον

Romans 3:25
Hebrews 9:5

Corresponding Hebrew Words

hilasterios H3727 kapporet
hilasterios H5835 azarah