عَتُومٌ

A she-camel that does not yield her milk copiously except in the period termed عَتَمَة: (S, K:) or a she-camel abounding in milk, the milking of which is deferred to the latter, or last, part of the night: thus according to Az: and that is retarded in the milking; as also ↓ عَاتِمٌ; plural عَوَاتِمُ: and عَتُومَةٌ, as mentioned by IB, on the authority of Th, a she-camel that yields a copious supply of milk. (TA.)