אֲבֵידָן, (אבד; cacophemism for וַועֲדָא q. v.), בֵּי א׳ = בֵּי וַועֲדָו) prop. their place of ruin, cacophemism for meeting-place, gathering for idolatrous purposes and performances connected with idolatrous feasts (games, &c.) which the Jews, under Hadrian, were forced to attend. Sabb. 152ᵃ. Ab. Zar. 17ᵇ.—Transf. meeting place of early Christians where religious controversies used to be held. Sabb. 116ᵃ ספרי דבי א׳ Christian writings. Ib. רב לא אזיל וכ׳ Rab would not attend a Be-Abedan, Samuel would.