— systemically , adv.
/si stem"ik/ , adj.
1. of or pertaining to a system.
2. Physiol. , Pathol.
a. pertaining to or affecting the body as a whole.
b. pertaining to or affecting a particular body system.
3. (of a pesticide) absorbed and circulated by a plant or other organism so as to be lethal to pests that feed on it.
[ 1795-1805; SYSTEM + -IC ]