Pronunciation: ˌ tri-k ə - ' gra-m ə -
Function: noun
Etymology: New Latin, from trich - + Greek gramma letter, small weight ― more at GRAM
Date: 1972
: any of a genus ( Trichogramma ) of minute chalcid wasps that are parasitic as larvae in the eggs of other insects and are used in the biological control of lepidopteran pests