Lexical Definition

‎αἰσθητήριον‎ aisthētḗrion (ahee-sthay-tay'-ree-on) sense ^G:N-N
from a derivative of ‎αἰσθάνομαι‎

senses.

• properly, an organ of perception, i.e. (figuratively) judgment

Abbott-Smith

αἰσθητήριον, -ου, τό (< αἰσθάνομαι), [in LXX: Je 4:19 (קִיר), IV Mac 2:22*;]
sense, organ of perception: He 5:14 (MM, VGT, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

αἰσθητήριον-ητήριον, τό,

organ of sense, [Refs 5th c.BC+]; τὰ αἰ., opposed to ἡ διάνοια, [Refs 4th c.BC+]; τὰ αἰ. the faculties, [LXX+NT]

_{LSJ Scripture Refs: Heb.5.14}