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 (fragment, antigen-binding)
originally, either of two identical fragments, each containing an antigen combining site, obtained by papain cleavage of the IgG molecule; now generally used as an adjective in terms such as Fab fragment or region, referring to an “arm” of any immunoglobulin monomer, i.e., one light chain and the adjoining heavy chain VH and CH1 domains.
digoxin immune Fab (ovine) a preparation of antigen-binding fragments derived from specific antidigoxin antibodies produced in sheep that have been immunized with digoxin coupled as a hapten to human serum albumin, used as an antidote to life-threatening digoxin and digitoxin overdose; administered intravenously.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Abbreviation for French-American-British (classification of acute leukemias). See: FAB classification.
Farlex Partner Medical Dictionary © Farlex 2012


A popular term for any of the alternative beverages that were formulated in response to an increase in the US federal wine tax in the early 1990s. The spirits industry responded by moving away from wine coolers to malt-based alcoholic beverages including "hard" lemonades and fruit coolers and drinks.


A gene on chromosome Xp22.2 that encodes a protein of the Fanconi anaemia complementation group (here, complementation group B), the members of which are related not by sequence similarity, but rather by their assembly into a common nuclear protein complex.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Abbreviation for French-American-British classification system.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


The monovalent antigen-binding fragment of an antibody molecule obtained when the protein is digested with the enzyme papain. It consists of an intact light chain and the immediately-associated terminal and domains of a heavy chain.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Fab Force members today benefit from the program by accessing insights and expertise provided by Orange Silicon Valley's analysts, as well as the shared knowledge among members, mentors, VCs, angels, and startups in the Orange Fab online platform.
"Moreover, it will enable them to meet and communicate with all Fab Lab users in the MIT international network allowing for the exchange of expertise and mutual experimentation.
It is generally believed that the Fab (and other monovalents) fragment displays a relatively low affinity than the divalent constructs, such as the F [(ab').sub.2] and the full-length immunoglobulin [39].
At Mahtomedi High School, all ninth graders take a science class that combines physics, chemistry, and engineering, and then have the option to take How to Make (Almost) Anything, aerospace engineering, or a college-level introduction to engineering course taught by a professor from Century College, all of which use the Fab Lab.
When TSMC is accelerating its move to expand production at Fab 14, United Microelectronics Corp.
Board meeting of FAB unanimously decided that PEMRA would remit share of FM channels spectrum auction fee with reference to FAB.
The situation is particularly critical for four FABs, for which the first stage - an agreement at member state level - has not even been accomplished.
FAB is a premium collection that caters to universal beauty concerns, as well as the needs of sensitive and challenged skin.
There will be crayons and paints on hand for children to to create their Fab Den.
300mm Fab. No.2, which will feature a dual-level clean room structure, is scheduled to be constructed within fiscal 2006 (April 2006 - March 2007) and become operational from April 2007, with volume shipments expected to start from July 2007.
M2 PRESSWIRE-September 4, 2019-: Fab Slabs Australia Has Released a Food Safety Alert