toxoid

toxoid

 [tok´soid]

a toxin treated by heat or chemical agent to destroy its deleterious properties without destroying its ability to combine with or stimulate the formation of antitoxin.

diphtheria toxoid a sterile preparation of formaldehyde-treated products of the growth of Corynebacterium diphtheriae, used as an active immunizing agent, generally in mixtures with tetanus toxoid and pertussis vaccine (DTP) or with tetanus toxoid alone (DT for pediatric use and Td, which contains less diphtheria toxoid, for adult use).

tetanus toxoid a sterile preparation of formaldehyde-treated products of the growth of Clostridium tetani, used as an active immunizing agent, either in mixtures with diphtheria toxoid and pertussis vaccine (DTP, DT, Td) or by itself (T).

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tox·oid

(tok'soyd),

A toxin that has been treated (commonly with formaldehyde) so as to destroy its toxic property but retain its antigenicity, that is, its capability of stimulating the production of antitoxin antibodies and thus of producing an active immunity. For specific toxoids, see entries under vaccine

Synonym(s): anatoxin

[toxin + G. eidos, resemblance]

Farlex Partner Medical Dictionary © Farlex 2012

toxoid

(tŏk′soid′)

n.

A substance that has been treated to destroy its toxic properties but retains the capacity to stimulate production of antitoxins, used in immunization.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

toxoid

Immunology A bacterial toxin or other antigen treated with formaldehyde to ↓ toxicity while preserving antigenicity; toxoids are used to prepare diphtheria and tetanus vaccines. Cf Freund's adjuvant.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

tox·oid

(tok'soyd)

A toxin that has been treated (commonly with formaldehyde) so as to destroy its toxic property but retain its antigenicity, i.e., its capability of stimulating the production of antitoxin antibodies and thus of producing an active immunity.

[toxin + G. eidos, resemblance]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

toxoid

A bacterial toxin that has been chemically changed so as to lose its poisonous properties but retain its ability to stimulate antibody production. Toxoids make excellent vaccines against infections characterized by exotoxin production, such as DIPHTHERIA and TETANUS.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

toxoid

a substance produced from a toxin but in which the toxicity is destroyed while the property of inducing immunity to the toxin is retained. Used to immunize against toxigenic infections, for example DIPHTHERIA and TETANUS.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Toxoid

A preparation made from inactivated exotoxin, used in immunization.

Mentioned in: Diphtheria

Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

tox·oid

(tok'soyd)

Toxin that has been treated (commonly with formaldehyde) to destroy its toxic property but retain its antigenicity, i.e., its capability of stimulating the production of antitoxin antibodies and thus of producing an active immunity.

[toxin + G. eidos, resemblance]

Medical Dictionary for the Dental Professions © Farlex 2012