Plural of formalin; multiple types or batches of formaldehyde solutions, or multiple applications/uses of formalin.
Simple plural of 'formalin' (from German 'Formalin'), used when referring to multiple formulations or instances of formaldehyde solutions.
In chemistry labs, different 'formalins' might have slight variations in concentration or additives—a 10% formalin behaves completely differently from a 40% solution, which is why chemists carefully distinguish between them!
Complete word intelligence in one call. Free tier — 50 lookups/day.