toxoid

toxoid
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.For specific toxoids, see entries under vaccine. SYN: anatoxin. [toxin + G. eidos, resemblance]

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tox·oid 'täk-.sȯid n a toxin of a pathogenic organism treated so as to destroy its toxicity but leave it capable of inducing the formation of antibodies on injection <diphtheria \toxoid> called also anatoxin

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n.
a preparation of the poisonous material (toxin) that is produced by dangerous infective organisms, such as those of tetanus and diphtheria, and has been rendered harmless by chemical treatment while retaining its antigenic activity. Toxoids are used in vaccine.

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tox·oid (tokґsoid) [toxo- + -oid] a modified or inactivated bacterial exotoxin that has lost toxicity but retains the properties of combining with, or stimulating the formation of, antitoxin.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Toxoid — Tox oid, n. [Toxin + oid.] (Physiol. Chem.) An altered form of a toxin, possessing little or no toxic power. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • toxoid — [täk′soid΄] n. [ TOX(IN) + OID] a toxin that has been treated, as with chemicals or heat, so as to eliminate the toxic qualities while retaining the antigenic properties …   English World dictionary

  • Toxoid — Toxoidimpfstoffe sind Impfstoffe, die Toxoide als wirksamen Bestandteil enthalten und bei aktiven Impfungen eingesetzt werden. Toxoide sind entgiftete Toxine, bei denen durch spezielle Verfahren die für die Giftigkeit verantwortlichen… …   Deutsch Wikipedia

  • Toxoid — A toxoid is a bacterial toxin (usually an exotoxin)whose toxicity has been weakened or suppressed either by chemical (formalin) or heat treatment, while other properties, typically immunogenicity, are maintained. Toxoids are used in vaccines as… …   Wikipedia

  • toxoid — /tok soyd/ n. a toxin rendered nontoxic by treatment with chemical agents or by physical means and used for administration into the body in order to produce specific immunity by stimulating the production of antibodies. Also called anatoxin.… …   Universalium

  • Toxoid — To|xo|id 〈n. 11〉 entgiftetes Toxin, das im menschl. Körper keine Schäden, aber die Bildung von Antitoxinen bewirkt [→ Toxikum] * * * To|xo|id [↑ Toxin u. ↑ oid], das; s, e; veraltetes Syn.: Anatoxin: ein durch Zerstörung der toxophoren Gruppe… …   Universal-Lexikon

  • toxoid — noun a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin diphtheria toxoid • Syn: ↑anatoxin • Hypernyms:… …   Useful english dictionary

  • toxoid-antitoxin floccule — a suspension of the precipitate formed when toxoid and antitoxin are mixed …   Medical dictionary

  • toxoid-antitoxoid — tox·oid an·ti·tox·oid (tok″soid anґtĭ tok″soid) a toxoid mixed with an equivalent amount of antitoxic serum, the precipitate being suspended in saline …   Medical dictionary

  • toxoid — noun Etymology: International Scientific Vocabulary Date: circa 1894 a toxin of a pathogenic organism treated so as to destroy its toxicity but leave it capable of inducing the formation of antibodies on injection …   New Collegiate Dictionary

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