Biopsy
Biopsy: The removal of a sample of tissue for examination under a microscope to check for cancer cells or other abnormalities.
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- Biopsy, excisional
Biopsy, excisional: A surgical procedure in which an entire abnormal area is removed for diagnostic examination under a microscope.
- Biopsy, punch
Biopsy, punch: A biopsy that is performed by using a punch, an instrument for cutting and removing a disk of tissue. For example, a punch biopsy of the skin may be done to make a diagnosis of skin cancer.
- Biosafety
Biosafety: The application of knowledge, techniques and equipment to prevent personal, laboratory and environmental exposure to potentially infectious agents or biohazards. Biosafety defines the containment conditions under which infectious agents can be safely manipulated. The objective of containment is to confine biohazards and to reduce the potential exposure of the laboratory worker, persons outside of […]
- Biosafety level
Biosafety level: A specific combination of work practices, safety equipment, and facilities which are designed to minimize the exposure of workers and the environment to infectious agents. The biosafety levels are: Level 1 — This level applies to agents that do not ordinarily cause human disease. Level 2 — This level is appropriate for agents […]
- Biotechnology
Biotechnology: The fusion of biology and technology, the application of biological techniques to product research and development. In particular, biotechnology involves the use by industry of recombinant DNA, cell fusion, and new bioprocessing techniques to produce large molecules useful in treating and preventing disease. Slang biotech.