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.

Jan 2, 2026 · 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 …

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

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...

Twins are two babies that are born at the same time. Human twins are two people that shared a single pregnancy, and one is normally born quickly after the first. There are 2 types of twins. They are: …

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TWIN definition: either of two children or animals brought forth at a birth. See examples of twin used in a sentence.

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

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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 …