MINIM.

Naomi, over at Baraita, has taken time out from her lytdybr entries about moving to a new university town and posted a fascinating discussion of, among other things, "Jewish groups who deviated from some perceived norm": minim, apikursim, and others. One of the reasons I used to wish I were Jewish was so I could be an apikoyres, but the other terms were new to me.