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.

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

Apr 25, 2023 · In a basic twin pregnancy, two embryos go their separate ways and develop into twin babies, whether identical or fraternal. Some unique sets of twins follow a different path.

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

Aug 1, 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 and the two-egg (dizygotic), or fraternal, type.

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...

Learn how twinning happens and what types of twins are out there.

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 structures, such as flowers, that occur in pairs. 4. Consisting of two identical or similar parts: a twin lamp fixture.

6 days ago · 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 at the same time.

Aug 12, 2025 · Twin telepathy is the belief that twins—especially identical (monozygotic) ones—can sense each other’s feelings, thoughts, or physical sensations across distance without using the five senses.