Defalcate - definition of defalcate by The Free Dictionary Define defalcate defalcate synonyms, defalcate pronunciation, defalcate translation, English dictionary definition of defalcate intr v de·fal·cat·ed , de·fal·cat·ing , de·fal·cates To misuse funds; embezzle de′fal·ca′tion n de·fal′ca′tor n American Heritage® Dictionary of the