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  1. Twin - Wikipedia

    One twin, the 'donor' twin, is small and anemic, the other, the 'recipient' twin, is large and polycythemic. The lives of both twins are endangered by this condition.

  2. TWIN Definition & Meaning - Merriam-Webster

    The meaning of TWIN is either of two offspring produced in the same pregnancy. How to use twin in a sentence.

  3. Twin | Identical, Monozygotic, Dizygotic | Britannica

    Nov 21, 2025 · Twin, either of two young who are simultaneously born from one mother. Twinning, common in many animals, is of two biological kinds: the one-egg (monozygotic), or identical, type …

  4. Understanding Twins | Psychology Today

    There are different types of twins, identical and fraternal being the most common. Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are...

  5. TWIN | definition in the Cambridge English Dictionary

    TWIN meaning: 1. either of two children born to the same mother on the same occasion: 2. one of two very similar…. Learn more.

  6. twin - Wiktionary, the free dictionary

    Nov 18, 2025 · twin (third-person singular simple present twins, present participle twinning, simple past and past participle twinned) (transitive, obsolete outside Scotland) To separate, divide.

  7. Virginia twins arrested for allegedly deleting government databases ...

    Dec 4, 2025 · Virginia twin brothers arrested for allegedly conspiring to delete government databases hosted by a federal government contractor after their terminations.

  8. TWIN definition in American English | Collins English Dictionary

    Twins are two people who were born at the same time from the same mother. Sarah was looking after the twins. I think there are many positive aspects to being a twin.

  9. Twin - Definition, Meaning & Synonyms | Vocabulary.com

    If you have a twin brother or sister, the two of you are always the same age. There are identical twins, who have the same DNA, and fraternal twins, who are more like two siblings who happen to be born …

  10. Twin - definition of twin by The Free Dictionary

    1. Being two or one of two offspring born at the same birth: twin sisters. 2. Being two or one of two identical or similar people, animals, or things: twin cities; a twin bed. 3. Botany Of or relating to …