A meroterpene is a chemical compound having a partial terpenoid structure. A meroterpene is a chemical compound having a partial terpenoid structure. Terpenophenolics are compounds that are part terpenes, part natural phenols. Plants in the genus Humulus and Cannabis produce terpenophenolic metabolites. Examples of terpenophenolics are: Terpenophenolics can also be isolated from animals. The terpenophenolics methoxyconidiol, epiconicol and didehydroconicol, isolated from the ascidian Aplidium aff. densum, show antiproliferative activity.