Usage: 2 forms in 18 verses
Form Translated As     In Verse(s)
πυρείον censer LXX.Exod.27.3 • LXX.Exod.38.3 • LXX.Lev.16.12 • LXX.Num.16.46
his censer LXX.Lev.10.1 • LXX.Num.16.17 • LXX.Num.16.17 • LXX.Num.16.17
his own censer LXX.Num.16.18
πυρεία censers LXX.Num.4.14 • LXX.Num.16.6 • LXX.Num.16.17 • LXX.Num.16.37 • LXX.Num.16.38 • LXX.Num.16.39 • LXX.2Kgs.25.15 • LXX.2Chr.4.11 • LXX.2Chr.4.21

Liddell-Scott-Jones

πυρεῖον (pureion) a censer G:N-N

πυρεῖον,

Ionic dialect πυρ-ήϊον, τό, mostly in plural, firesticks, [Refs 5th c.BC+]; πυοεῖά τε χερσὶν ἐνώμων [Refs 3rd c.BC+]; the stationary piece was called ἐσχάρα, the drill τρύπανον, [Refs 4th c.BC+]

__II singular, earthen pan for coals (= θυμιατήριον, [LXX+5th c.AD+]

LSJ Scripture Refs: LXX.Exod.27.3 ☩ LXX.2Chr.4.11