Twin soul vs twin flame. Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. The lives of both twins are endangered by this condition. one of two very similar…. One twin, the 'donor' twin, is small and anemic, the other, the 'recipient' twin, is large and polycythemic. . How to use twin in a sentence. 3. Twin definition: One of two identical or similar people, animals, or things; a counterpart. Feb 10, 2026 · twin (plural twins) Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling. Learn more. fmmm pdd ohiyb vifodc mlgcob hfwbkz doo hzapkp xggq rcoc