toxoid

2 definitions found

toxoid - Collaborative International Dictionary of English v.0.48 :

  Toxoid \Tox"oid\, n. [Toxin + -oid.] (Physiol. Chem.)
     An altered form of a toxin, possessing little or no toxic
     power.
     [Webster 1913 Suppl.]

toxoid - WordNet (r) 2.1 (2005) :

  toxoid
      n 1: 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,
           toxoid]