maller是什么意思啊

intaglioUID: 3403993

看小马长难句有一句是这样
It appeared that Canada was once more falling in step with the trend toward maller families that had occurred all through the Western world since the time of the Industrial Revolution.
这个maller 是什么意思呀
看翻译有翻译成规模家庭 有翻译成小家庭
是不是句子拼错了是smaller？