alexo-, alex-, alexi- (Greek: defend, protect, ward off, keep off).
Protective against infection or poison.
An antibacterial substance.
1. A defensive substance in normal serum that destroys bacteria and other cells.alexipharmac, 1. Warding off the ill effects of a poison.
2. A name for a class of substances found in blood-serum, having the capacity of destroying bacteria, etc., and thus guarding against infection.
2. An antidote or remedy for poisoning.
Antidotal; an antidote.
A substance that reduces fever; antipyretic.
Any substance that is produced by plant tissues in response to contact with a parasite and specifically inhibits the growth of that parasite. The term was originally defined with regard to fungal parasites only, but in 1956 it was extended to cover all parasites [According to the Oxford English Dictionary].