ectomy Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a surgical removal of a part of the body. Example Sentence Tonsillectomy joins tonsil with ectomy to mean surgical removal of the tonsils. More Example Sentences An ectomy can be necessary for health. Synonyms removal; excision; operation Antonyms put in Hear It! Say It! Write It! ectomy Switch to cursive Start Share with your friends: