حترحِتَارٌ The circuit, rim, or surrounding edge, of a thing; what surrounds [the whole of] a thing: (S, K:) pl. حُتُرٌ. (S.) b2:  The hoop of a sieve [and the like]. (TA.) b3:  The anus; syn. حَلْقَةُ الدُّبُرِ; (K;) or such is the meaning حِتَارُ الدُّبُرِ, and شَرَجُهُ: (Mgh in art. شرج:) and the extremities of its skin; i. e. the place where the external skin and the extremities of the خَوْرَان [or rectum] meet: or the edges of the دُبُر [or anus]: (TA:) or the part between the anus and the anterior pudendum: or the line between the two testicles. (K.) b4:  حِتَارُ الأُذُنِ The circuit of the edges of the gristles of the ear. (TA.) b5: حِتَارُ العَيْنِ The edges of the eyelids, which meet when the eye is closed: (TA:) or the زِيق of the eyelid, (K accord. to some copies, [and this is the right reading, meaning its edge, زيق being here used tropically, its proper signification being the “ part ” of a shirt “ that surrounds the neck,”] as is said in the TA,) internally: in most copies of the K رَيْقُ الجَفْنِ, [in the CK رِيقُ الجُفْنِ,] with راء [not زاى]. (TA.) b6:  حِتَارُ الظُّفُرِ The part of the flesh which is around the nail. (TA.)