remove, usually with some force or effort; also used in an abstract sense; "pull weeds"; "extract a bad tooth"; "take out a splinter"; "extract information from the telegram"
separate (a metal) from an ore
get despite difficulties or obstacles; "I extracted a promise from the Dean for two new positions"
(orthopedics) the act of pulling on a bone or limb (as in a fracture) to relieve pressure or align parts in a special way during healing; "his leg was in traction for several days"