A brand name or proprietary form of formaldehyde-based preservative or disinfectant used in laboratories.
From formol + -it (Germanic suffix creating material or product names). This is a proprietary compound name from early 20th-century chemistry, following the pattern of naming commercial chemical products.
Formolit is a ghost brand name—companies invented these trademark versions of formaldehyde to own a market niche, but most disappeared as generic names won out, leaving linguistic fossils in old scientific papers.
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