bisphenols

https://doi.org/10.1351/goldbook.B00676

By usage, the methylenediphenols,

HOC₆H₄CH₂C₆H₄OH

, commonly p,p-methylenediphenol, and their substitution products (generally derived from condensation of two equivalent amounts of a phenol with an aldehyde or ketone).

Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1323 (https://doi.org/10.1351/pac199567081307)