Definition of Siamese twins in English:
Dated term for conjoined twins.
- A pair of Siamese twins joined at the spine both survived an operation to separate them in December last year.
- A rare and complicated operation in Singapore to separate a pair of Siamese twins from Nepal who are joined at the head continues to progress smoothly as it enters its fourth day.
- ‘Tug us any closer and we will officially be the world's first Siamese twins that were joined after birth,’ he said dryly.
early 19th century: with reference to the Siamese men Chang and Eng (1811–74), who, despite being joined at the waist, led an active life.
Definition of Siamese twins in:
- US English dictionary