Narcissists believe their personality and appearance is superior to others. Symptoms of narcissism include focusing only on one's self, lacking guilt and an inability to empathize. Narcissistic people tend to be vain. A marriage being undermined by narcissism might benefit from therapy.
Trocar: A sharply pointed shaft, usually with a three-sided point. A trocar may be used within a cannula, a hollow tube, designed to be inserted into a vein, artery, bone marrow or body cavity. The word trocar is derived from the French trois (three) + carre (side). Last Editorial Review: 6/9/2016.
The novel surgery -- known as the transvaginal mesh procedure -- involves using a piece of synthetic mesh that has what looks like wings (called trocar) that are used to anchor the mesh. The trocar is pushed to a higher plane in the connective tissue, anchoring it more securely, and then sutured into place.