Strong's #234: alisgema (pronounced al-is'-ghem-ah)
from alisgeo (to soil); (ceremonially) defilement:--pollution.
Thayer's Greek Lexicon:
̓́
alisgema
1) pollution, condemnation
Part of Speech: noun neuter
Relation: from alisgeo (to soil)
Usage:
This word is used 1 times:
Acts 15:20: "unto them, that they abstain from pollutions of idols, and from fornication, and"