metasoma Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the posterior part of the body of certain insects. Example Sentence The scorpion's metasoma, also known as its tail, is equipped with a venomous stinger. More Example Sentences Many insects have a distinct metasoma. Synonyms abdomen; hindbody Antonyms head; anterior Hear It! Say It! Write It! metasoma Switch to cursive Start Share with your friends: