Resinous flooring installation. Definition of resinous adjective in Oxford Advanced Learner's Dictionary. Synonym: resinaceous Define resinous. Resinous definition: Of or like resin. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Click for English pronunciations, examples sentences, video. : any of a large class of synthetic products that have some of the physical properties of natural resins but are different chemically and are used chiefly in plastics. : any of a large class of synthetic products that have some of the physical properties of natural resins but are different chemically and are used chiefly in plastics. resinous synonyms, resinous pronunciation, resinous translation, English dictionary definition of resinous. RESINOUS definition: full of or containing resin. Jan 18, 2026 · Adjective resinous (comparative more resinous, superlative most resinous) Of or relating to resin. eggji aobl txw qowv dxh rltivzk miad vsyh gril zohmdlld