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.
1 Chemicals are also injected by syringe into other areas of the body.  The second part of the embalming process is called cavity embalming. A trocar â a long, pointed, metal tube attached to a suction hose â is inserted close to the navel. The embalmer uses it to puncture the stomach, bladder, large intestines, and lungs.