|a fool or simpleton; ninny.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
toxoid tox·oid (tŏk'soid')
A substance that has been treated to destroy its toxic properties but that retains the capacity to stimulate production of antitoxins, used in immunization.
|toxoid (tŏk'soid') Pronunciation Key
A substance that is normally toxic but has been treated to destroy its toxic properties without eliminating its capacity to stimulate the production of antitoxins by the immune system.