A family of parasitic roundworms (nematodes) that are extremely small and can parasitize various organisms.
From 'anguillula' (small eel-like worm) plus the scientific suffix '-idae' meaning family. This follows the Linnaean taxonomic system where '-idae' is added to create the formal name for an animal family.
The suffix '-idae' is like a biological zip code—every animal family name ending in '-idae' tells you it's a scientific classification, and Latin suffixes like this let scientists from any country understand the relationship between organisms instantly!
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