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.

Oct 8, 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, …

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

Oct 1, 2025 · Are twins really double the trouble? Keep reading to uncover the truth behind common twin myths and reveal the true twin facts.

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...

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

Oct 31, 2025 · twin (third-person singular simple present twins, present participle twinning, simple past and past participle twinned) (transitive, obsolete outside Scotland) To separate, divide.

either of two persons or things closely resembling each other. adj. [before a noun] being a twin or twins: twin sisters. being two persons or things closely related to each other. being one of a …

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 …

Definition of twin noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.