A taxonomic group of fish characterized by having arm-like or short fin structures combined with ganoid scales, an ancient classification now largely obsolete in modern ichthyology.
From Greek 'brachion' (arm) and 'ganoid' (a type of fish scale), combined with the Latin plural ending '-ei'. This term emerged in 19th-century zoological taxonomy when scientists were classifying fish based on visible physical features.
This word is a fossil itself—it's barely used anymore because scientists realized fish don't fit neatly into these old categories. Modern DNA testing showed that what looked like related 'arm-finned fish' were actually super distant cousins, kind of like if we grouped humans with dolphins because they both have flippers.
Complete word intelligence in one call. Free tier — 50 lookups/day.