1. Plural of formalin; aqueous solutions of formaldehyde, typically containing 37–40% formaldehyde by volume, used as a disinfectant and preservative.
Usage: Commonly used in medical, biological, and laboratory settings.; Often used for preserving biological specimens.

Examples

• The laboratory stored several bottles of formalins for specimen preservation.
• Formalins are widely used in medical schools to preserve cadavers for anatomical study.
• The biology class used formalins to keep the dissection samples fresh.
• Different concentrations of formalins serve different purposes in research.
• The hospital ordered new supplies of formalins for the pathology department.