v. t. [ imp. & p. p. Decollated; p. pr. & vb. n. Decollating. ] [ L. decollatus, p. p. of decollare to behead; de- + collum neck. ] To sever from the neck; to behead; to decapitate. [ 1913 Webster ]

The decollated head of St. John the Baptist. Burke. [ 1913 Webster ]

a. (Zool.) Decapitated; worn or cast off in the process of growth, as the apex of certain univalve shells. [ 1913 Webster ]

n. [ L. decollatio: cf. F. décollation. ] 1. The act of beheading or state of one beheaded; -- especially used of the execution of St. John the Baptist. [ 1913 Webster ]

2. A painting representing the beheading of a saint or martyr, esp. of St. John the Baptist. [ 1913 Webster ]

‖n. [ F. See Décolleté. ] (Costume) 1. The upper border or part of a low-cut (i.e., décolleté) dress. [ Webster 1913 Suppl. +PJC ]

2. The exposed upper parts of the breasts of a woman wearing a low-cut dress; as, transfixed by her stunning decolletage. [ PJC ]

‖a. [ F., p. p. of décolleter to bare the neck and shoulders; dé- + collet collar, fr. L. collum neck. ] 1. Leaving the neck and shoulders uncovered; cut low in the neck, or low-necked, as a dress. [ 1913 Webster ]

2. Wearing a décolleté gown. [ Webster 1913 Suppl. ]

n. Beheading. [ R. ] [ 1913 Webster ]

By a speedy dethroning and decolling of the king. Parliamentary History (1648). [ 1913 Webster ]