Quick Definition
μίασμα, ατος, τό n.n. pollution, defilement
Strong's Definition
from 3392 ("miasma"); (morally) foulness (properly, the effect)
KJV Usage: pollution
UBS Dictionary of the Greek New Testament
noun, n. | -τος | μιαίνω
88.259 · Moral and Ethical Qualities and Related Behavior · Impurity
impurity, impure, tainted, evil, defilement a state of being tainted or stained by evil
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
μίασμα, -ros, τό, (μιαίνω), that which defiles [cf. καύχημα, 2]; defilement (Vulg. coinquinatio): trop. μιάσματα τοῦ κόσμου, Vices the foulness of which contaminates one in his intercourse with the ungodly mass of mankind, 2 Pet. ii. 20. (Tragg., Antiph., Dem., Polyb., Joseph., Plut.; Sept., Lev. vii. 8 (18); Jer. xxxix. (xxxii.) 34; Judith ix. 2; 1 Mace. xiii. 50.)
Mounce Concise Greek Dictionary
μίασμα miasma 1x
pollution, moral defilement, corruption, 2 Pet. 2:20*
Abbott-Smith Greek Lexicon
μίασμα, -τος, τό
(< μιαίνω), chiefly in trag. and late writers; [in LXX: Le 7:8 (18) (פִּגּוּל), Je 39 (32):34 (שִׁקּוּץ), Ez 33:31 (בֶּצַע), Jth 9:2, 4 13:16, I Mac 13:50*;]
a stain, defilement: pl., II Pe 2:20.†
Moulton & Milligan — Vocabulary of the Greek NT
μίασμα, which in the NT occurs only in 2 Pet 259, is also found in Apoc. Petr.9 τῷ μιάσματι τῆς μοιχείας. In the late Aazbe/ 1140 b.° (not before the time of Justinian) it is an epithet of Satan—Bedudp κ[ακό]μορ[φ]ε, . . . μ[Πασμα, δράκων κτλ.
Liddell-Scott-Jones — Greek-English Lexicon
μίασμα (miasma) — defilement. μί-ασμα [ῐ], ατος, τό, (μιαίνω) stain, defilement, especially by murder or other crime, taint of guilt, [Refs 5th c.BC+]
II. that which defiles, pollution, of persons, χώρας μ. καὶ θεῶν ἐγχωρίων [Refs]; πατροκτόνον μ. καὶ θεῶν στύγος, of Clytaemnestra, [Refs 5th c.BC+]: in Prose more generally, πνεῦμα μεμιασμένον νοσηροῖσι μιάσμασι [Refs 5th c.BC+]