A small winged insect of ant-like appearance. The female lays its egg in the food plant and when the larva hatches the surrounding plant tissue swells up around it to form a gall.
More example sentences
- He immerses himself in the study of the gall wasp, whose North American varieties were almost completely unresearched.
- His specialty was the physiology of the gall wasp.
- He attended Harvard and received a Doctor of Science degree in taxonomy, and he devoted no less than 20 years of his life to researching the gall wasp.
Definition of gall wasp in:
- The US English dictionary