A mode of attiring oneself with the turban: so in the saying, هُوَ حَسَنُ العِمَّةِ [He is comely in respect of the mode of attiring himself with the turban]. (S, K.)
2.
[And it is vulgarly used as meaning A turban itself, like عِمَامَةٌ; and is used in this sense in the TA in article علم: see عَلَمْتُ عِمَّتِى near the end of the first paragraph of that article]