ˌmakrōˈsen.trəs noun
Usage: capitalized
Etymology: New Latin, from Greek makrokentros with a long sting, from makr- macr- + kentron sting — more at center
: a genus of polyembryonic braconid wasps which are larval parasites of other insects and some of which are important in the biological control of noxious pests (as the oriental peach moth)