Lexical Definition

‎θυσιαστήριον‎ thysiastḗrion (thoo-see-as-tay'-ree-on) altar ^G:N-N
from a derivative of ‎θυσία‎

altar.

• a place of sacrifice, i.e. an altar (special or genitive case, literal or figurative)

Abbott-Smith

† θυσιαστήριον, -ου, τό (< θυσιάζω, to sacrifice), [in LXX (where the word first appears) very freq., nearly always for מִזְבֵּחַ;]
an altar:
(a) generally, Ja 2:21; pl., Ro 11:3(LXX); metaph., He 13:10 (v. Westc., in l., and esp. his add. note on the history of the word, 455 ff.);
(b) of the altar of burnt-offering in the Temple, Mt 5:23, 24 23:18-20, 35, Lk 11:51, I Co 9:13 10:18, He 7:13, Re 11:1;
(c) of the altar of incense in the sanctuary (Ex 30:1, al.), Lk 1:11; symbolically in Heaven, Re 6:9 8:3, 5 9:13 14:18 16:7 (Cremer, 292).†

Abbott-Smith References

Liddell-Scott-Jones

θυσιαστήριον-αστήριον, τό,

altar,[LXX+NT+1st c.AD+]

_{LSJ Scripture Refs: LXX.Exod.27.1 ☩ Matt.23.18}