twinned
AdjectiveWordNet 3.0
Webster's Dictionary (GCIDE)
1.To bring forth twins. --Tusser. [1913 Webster]
2.To be born at the same birth. --Shak. [1913 Webster]
Twinned \Twinned\, a. (Crystallog.) Composed of parts united according to a law of twinning. See Twin, n., 4. [1913 Webster]