first off, you may want to do a little research as what the word "abomination" biblically means. here's a starter for you :Leviticus 18:22 - Thou shalt not lie with mankind, as with womankind: it [is] abomination
a-bom-i-na'-shun (piggul, to`ebhah, sheqets (shiqquts)): Three distinct Hebrew words are rendered in the English Bible by "abomination," or "abominable thing,".
It would be well if these words could be distinguished in translation, as they denote different degrees of abhorrence or loathsomeness.
The word most used for this idea by the Hebrews and indicating the highest degree of abomination is to`ebhah, meaning primarily that which offends the religious sense of a people. When it is said, for example, "The Egyptians might not eat bread with the Hebrews; for that is an abomination unto the Egyptians," this is the word used; the significance being that the Hebrews were repugnant to the Egyptians as foreigners, as of an inferior caste, and especially as shepherds (Gen 46:34).
The feeling of the Egyptians for the Greeks was likewise one of repugnance. Herodotus (ii.41) says the Egyptians would not kiss a Greek on the mouth, or use his dish, or taste meat cut with the knife of a Greek.
Among the objects described in the Old Testament as "abominations" in this sense are heathen gods, such as Ashtoreth (Astarte), Chemosh, Milcom, the "abominations" of the Zidonians (Phoenicians), Moabites, and Ammonites, respectively (2 Ki 23:13), and everything connected with the worship of such gods.
It is to be noted that, not only the heathen idol itself, but anything offered to or associated with the idol, all the paraphernalia of the forbidden cult, was called an "abomination," for it "is an abomination to Yahweh thy God" (Dt 7:25,26). The Deuteronomic writer here adds, in terms quite significant of the point of view and the spirit of the whole law:`Neither shalt thou bring an abomination into thy house and thus become a thing set apart (cherem = tabooed) like unto it; thou shalt utterly detest it and utterly abhor it, for it is a thing set apart'(tabooed). To`ebhah is even used as synonymous with "idol" or heathen deity, as in Isa 44:19; Dt 32:16; 2 Ki 23:13; and especially Ex 8:22 ff.
Need more? I'll be happy to provide you more information regarding the biblical definition to the word "abomination". The word refers to having idols or eating meals with other nationalities or races, per the information above.
.....and this isn't anything new, either. The bibliography for the passages come from :
Orr, James, M.A., D.D. General Editor. "Definition for 'ABOMINATION'". "International Standard Bible Encyclopedia". bible-history.com - ISBE; 1915.