identical twin Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. either of two twins formed from the splitting of one zygote or fertilized egg and sharing the same genotype at birth Example Sentence My sister is my identical twin. Synonyms something exactly like another; likeness; look-alike Antonyms opposite Hear It! Say It! Write It! identical twin Switch to cursive Start Share with your friends:
