naphthenes [obsolete]

https://doi.org/10.1351/goldbook.N04084
@C01497@ especially cyclopentane, cyclohexane and their alkyl derivatives. The term seems to be obsolescent, except in the petrochemical industry.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1350 [Terms] [Paper]