A group or classification of insects or animals adapted for walking and running.
From Latin 'gressorius' (relating to walking), from 'gressus' (step), plus -ia (nominal suffix), used in zoological classification.
Early naturalists grouped animals by locomotion type—gressoria, natatorial, volant—creating a classification system based on how organisms moved, which was intuitive but eventually replaced by evolutionary biology.
Complete word intelligence in one call. Free tier — 50 lookups/day.