Erayga "oligodactyly" waa erey caafimaad oo tilmaamaya xaalad naadir ah oo lagu garto in ay ka yar tahay tirada caadiga ah ee nambarada (faraha ama suulasha) gacmaha ama cagaha. Gaar ahaan, waxay la macno tahay in gacmaha ama labada cagood lagu yeesho wax ka yar shan farood ama lugaha. xilliga koritaanka uurjiifka. Oligodactyly waxa uu jiri karaa marka uu dhasho ama waxa uu ku kori karaa nolosha danbe dhaawac ama cudur. macneheedu waa "far ama lug."