a. [ From Part, v. ] 1. Serving to part; dividing; separating. [ 1913 Webster ]

2. Given when departing; as, a parting shot; a parting salute. “Give him that parting kiss.” Shak. [ 1913 Webster ]

3. Departing. “Speed the parting guest.” Pope. [ 1913 Webster ]

4. Admitting of being parted; partible. [ 1913 Webster ]

Parting fellow, a partner. [ Obs. ] Chaucer. --
Parting pulley. See under Pulley. --
Parting sand (Founding), dry, nonadhesive sand, sprinkled upon the partings of a mold to facilitate the separation. --
Parting strip (Arch.), in a sash window, one of the thin strips of wood let into the pulley stile to keep the sashes apart; also, the thin piece inserted in the window box to separate the weights. --
Parting tool (Mach.), a thin tool, used in turning or planing, for cutting a piece in two. [ 1913 Webster ]

n. 1. The act of parting or dividing; the state of being parted; division; separation. “The parting of the way.” Ezek. xxi. 21. [ 1913 Webster ]

2. A separation; a leave-taking. Shak. [ 1913 Webster ]

And there were sudden partings, such as press
The life from out young hearts. Byron. [ 1913 Webster ]

3. A surface or line of separation where a division occurs. [ 1913 Webster ]

4. (Founding) The surface of the sand of one section of a mold where it meets that of another section. [ 1913 Webster ]

5. (Chem.) The separation and determination of alloys; esp., the separation, as by acids, of gold from silver in the assay button. [ 1913 Webster ]

6. (Geol.) A joint or fissure, as in a coal seam. [ 1913 Webster ]

7. (Naut.) The breaking, as of a cable, by violence. [ 1913 Webster ]

8. (Min.) Lamellar separation in a crystallized mineral, due to some other cause than cleavage, as to the presence of twinning lamellæ. [ 1913 Webster ]