Definition
A 'lamellibranch' is an older scientific term for bivalve mollusks. It refers to the plate-like (lamellae) structure of their gills. Think of it like the pages in a book (lamellae) being used for breathing. These gills filter food and extract oxygen from the water. Clams, oysters, and mussels are all lamellibranchs. While 'bivalve' is more common now, 'lamellibranch' is still occasionally used in scientific contexts. 📚