ECTOSARC Antonyms There are 2 antonyms of the word ectosarc. (opposite meanings)Did you mean?Definition of ECTOSARCBest Opposite Words For ECTOSARCTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb Expand?WordSave?Synonyms..UsageTypeendoplasmnounnnoun • the inner portion of the cytoplasm of a cellendosarcnounn No meanings yet for this word... Alternatives for ENDOPLASM Words (1)cytoplasmOpposite words for endoplasm