In biology, describing organisms or cells that lack flagella (whip-like structures used for movement).
From 'a-' (not) + 'flagellar' (related to flagella), from Latin 'flagellum' (whip), combining with the Greek negative prefix to describe cells without these structures.
Scientists use Latin and Greek prefixes like 'a-' (meaning not) constantly to describe what organisms *don't* have—it's actually more efficient than creating new words, turning 'flagellar' into its opposite.
Complete word intelligence in one call. Free tier — 50 lookups/day.