A group of parasitic protists that form association stages and live in the intestines of insects and other invertebrates.
From Greek 'eu-' (well, true) + 'gregarine' (a parasitic protozoan) + '-ida' (group suffix). Named to classify a particular order of gregarine parasites.
Eugregarinida parasites have one of the strangest life strategies—they actually make their hosts healthier temporarily by eating intestinal bacteria, which is why insects tolerate them until they're ready to reproduce and devastate the host.
Complete word intelligence in one call. Free tier — 50 lookups/day.