necro-, necr-, necron-, -necrosis, nekro- +

The resection of necrotic (dead) tissue.

Plural of necrosis.

1. The death of cells in a tissue or organ caused by disease or injury.
2. Death, or mortification; especially, of a bodily tissue, as a result of the loss of blood supply, corrosion, burning, etc.

The causes of necrosis include insufficient blood supply, but also, other physical agents; such as, trauma, or radiant energy (electricity, infrared, ultraviolet, roentgen, and radium rays); chemical agents acting locally, acting internally following absorption, or placed into the wrong tissue; such as, some medicines cause necrosis if injected into the tissues rather than the vein, and iron dextran (injectable form of iron used in the prevention of iron deficiency) causes necrosis if injected into areas other than the deep muscle or vein.

A condition in which there are dead or immobile sermatozoa in the semen.

Gangrene of bone.

Relating to the death of a portion of bodily tissue.

In veterinary medicine, an enterotoxemic disease in chickens caused by Clostridium perfringens, characterized by sudden onset with diarrhea, explosive mortality, and confluent mucosal necrosis of the small intestine.

To cause necrosis.

Causing or undergoing the death of cells (necrosis).

A severe bacterial infection that causes cell tissue to decay rapidly. This is the “flesh-eating bacterium” sometimes referred to in the media.

1. An operation for the removal of a necrosed (dead) portion of bone.
2. The dissection of a cadaver.

A poison that causes death or one that is a result of death.

An organism that feeds on dead tissues or cells.

Fungi that derive their nutrients from dead organic matter.

A symbiosis established between two living organisms in which one symbiont continues to use the other as a food source even after complete or partial death has occurred.