1.  surgical(a = adj.pert) - of or relating to or involving or used in surgery; "surgical instruments"; "surgical intervention"
Antonym: nonsurgical
Derived form noun surgery₁

2.  surgical(a = adj.all) operative - relating to or requiring or amenable to treatment by surgery especially as opposed to medicine; "a surgical appendix"; "a surgical procedure"; "operative dentistry"
Antonym: medical
Derived forms noun surgery₄, noun surgery₁

3.  surgical(s = adj.all) - performed with great precision; "a surgical air strike"

   Of or pertaining to surgeons or surgery; done by means of surgery; used in surgery; as, a surgical operation; surgical instruments. [1913 Webster]

surgical, adj.
1 of or relating to or done by surgeons or surgery.
2 resulting from surgery (surgical fever).
3 a used in surgery. b (of a special garment etc.) worn to correct a deformity etc.

Idiom:
surgical spirit methylated spirit used in surgery for cleansing etc.

Derivative:
surgically adv.

Etymology:
earlier chirurgical f. chirurgy f. OF sirurgie: see SURGEON

surgical contraception, surgical dressing, surgical gown, surgical incision, surgical instrument, surgical knife, surgical operation, surgical procedure, surgical process, surgical seam, surgical spirit, surgical strike