akin to a late verb alisgeo, "to pollute," denotes "a pollution, contamination," Acts 15:20 , "pollutions of idols," i.e., all the contaminating associations connected with idolatry including meats from sacrifices offered to idols.
Note: For miasma, AV, "pollutions," in 2 Peter 2:20 , see DEFILEMENT , B, No. 1.