Protoplasmic refers to the substance that makes up cells and organisms, including the cell membrane, cytoplasm, and nucleus. Synonyms for this word could include cellular, cytoplasmic, organic, living matter, and cell material. Other possible synonyms could be the terms plasmic, protoplasmatic, or protoplasmal. Additionally, the term protoplasmic might be used to describe something that is primitive or basic, so possible synonyms could include elementary, fundamental, primary, or essential. In a medical context, the term might be used to describe tissue or cells, so synonyms could include histological, cellular, or molecular. Overall, the synonyms for protoplasmic will depend on the specific context in which the term is being used.