A group of bivalve mollusks (like clams and mussels) that have two distinct muscular attachment scars on their shells.
From Greek 'di-' (two) + 'mys' (muscle) + '-aria' (plural suffix). Scientific taxonomy term coined in the 19th century to classify mollusks by their internal muscle structure.
These creatures literally leave their muscular autobiography written on their shells—those two scars tell scientists exactly how strong their closing muscles were, like finding ancient grip-strength records.
Complete word intelligence in one call. Free tier — 50 lookups/day.