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in transplantation immunology, a method of measuring the degree of organ, solid tissue, or blood compatibility between two individuals, in which specific histocompatibility antigens (such as those on leukocytes or erythrocytes) are detected by means of suitable isoimmune antisera.
blood typing (typing of blood) determining the character of the blood on the basis of agglutinogens in the erythrocytes; see also blood group.
phage typing characterization of bacteria, extending to strain differences, by demonstration of susceptibility to one or more races (a spectrum) of bacteriophage; widely applied to staphylococci, typhoid bacilli, and other organisms for epidemiological purposes.
tissue typing identification of the human leukocyte antigens of the donor and recipient of a transplant or transfusion; see also tissue typing.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Classification according to type (q.v.).
Farlex Partner Medical Dictionary © Farlex 2012


Medtalk The process of determining a particular type. See Back typing, Front typing, Immunotyping, Lancefield typing, Lymphocyte typing, Metabolic typing, Phage typing, Ribotyping.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Classification according to type.
See also: type
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A procedures to establish the group or classification of blood or tissues. See also BLOOD GROUPS and TISSUE TYPING.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Patient discussion about typing

Q. how many types of cancer are they?

A. There are over 200 different types of cancer. You can develop cancer in any body organ. There are over 60 different organs in the body where you can get a cancer.

Each organ is made up of several different tissue types. For example, there is usually a surface covering of skin or epithelial tissue. Underneath that there will be some connective tissue, often containing gland cells. Underneath that there is often a layer of muscle tissue and so on. Each type of tissue is made up of specific types of cells. Cancer can develop in just about any type of cell in the body. So there is almost always more than one type of cancer that can develop in any one organ.

Q. What types of arthritis are there? I am familiar with several types of arthritis, for instance R.A or ostheoarthritis. Are there more types?

A. Arthritis is a symptom that can occur on its own as part of a known disease such as RA, osteoarthritis or Gout, and can also happen as a part of other complex of symptoms involving the joints in other diseases such as: Crohn’s disease, ulcerative colitis, psoriasis and so on. Other diseases can mimic arthritis for instance: osteoporosis or multiple myeloma.

Q. Types of Bipolar I like to know that how many types of bipolar is there and what are its symptoms? Can any one please explain?

A. The DSM-IV (bible of psychological disorders) recognizes two disorders within the category of Bipolar disorders. Bipolar I Disorder is the characteristic cycling of depressive lows and manic highs (the extent and length of these extremes differ from person to person). Bipolar II disorder is cycling between depression and less intense hypomanias. So in a way, Bipolar II is less fun than Bipolar I. Manias and Hypomanias are not just being really happy. They are merely a period of intense energy and activity. The patient often has little control over what they say or do during this period.
There is something in Bipolar disorder called a "Mixed Episode". They are not very common but this is a very distressing period in which a person experiences symptoms from both a mania and a depression at the same time. Dark, disturbing thoughts and intense anxiety and lowered inhibitions--even panic attacks. In the words of my professor: "Mixed episodes suck".

More discussions about typing
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References in periodicals archive ?
Were their abysmal typing scores surprising, given their inherent abilities?
For example, the initial typing scores for the QWERTY typists were measured differently from the initial scores of the Dvorak typists so as to greatly disadvantage the QWERTY results.
After those first 10 days in which the investment is made and recovered, the faster typing continues every working day in the life of the typist.
These reference profiles are now available to each participating laboratory so they can set up the molecular typing techniques in their own laboratories, and to serve as internal controls in future extended studies of cryptococcal isolates in each country.
For the first time, two different molecular typing techniques, PCR-fingerprinting with the minisatellite specific primer MI3 and URA5 gene RFLP analysis, were applied simultaneously to the same set of cryptococcal isolates, demonstrating identical groupings to the eight major molecular types previously described (14,18).
Moreover, hospital epidemiologic data and molecular typing did not provide evidence of transmission of P.
Carriage of Pneumocystis carinii by immunosuppressed patients and molecular typing of the organisms.
The organizational structure for selecting microbes for typing was shared by the medical directors of infection control and clinical microbiology (12).
Enzymes are selected based on published reports as well as ongoing experience within the typing section.
The resurgence of rheumatic fever cases in the United States and the emergence of severe infections (streptococcal toxic shock and necrotizing fasciitis) caused by GAS in the 1980s and 1990s indicated the need to reassess typing strategies for GAS.
Before an emm genotype-based typing scheme was developed for GAS, the nucleotide sequence at the 5' ends of emm genes had been reported for many strains representing M-types 1-81 and several provisional M types (PT) (5,6).
Screening emm-specific PCR products for routine and accurate typing of group A streptococci.