camphors

Noun

camphor (countable and uncountable, plural camphors)

1. A white transparent waxy crystalline isoprenoid ketone, 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one, with a strong pungent odour, used in pharmacy, also known as laurel camphor or common/ordinary camphor.
   • Yet, oddly enough, I found a far unlikelier substance, and that was camphor. I found it in a sealed jar, that by chance, I suppose, had been really hermetically sealed. I fancied at first that it was paraffin wax, and smashed the glass accordingly. But the odour of camphor was unmistakable. In the...1895 May 29, H[erbert] G[eorge] Wells, “The Palace of Green Porcelain”, in The Time Machine: An Invention, London: William Heinemann, →OCLC, page 115
2. a plant-extracted crystalline substance similar to common camphor, especially Borneo camphor.