10-Letter Words Containing: I,S,O,N,S

• Any of a group of enzymes that catalyze the same reaction but have different structures and physical, biochemical and immunological properties.

• a powerful neurotoxin produced by certain dinoflagellates found in red tides; it can accumulate in mollusks that feed on the dinoflagellates and cause food poisoning to humans

• Any large bottom-dwelling anglerfish of the genus Lophius, such as Lophius piscatorius, of the Atlantic, having a large head and mouth.

• Angel sharks of the genus Squatina.