First Known Use: 1829
Dictionary
Siamese twin
noun
Definition of SIAMESE TWIN
: one of a pair of congenitally united twins
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Origin of SIAMESE TWIN
from Chang †1874 and English †1874 congenitally united twins born in Siam
Rhymes with SIAMESE TWIN
Medical Dictionary
Siamese twin
noun Si·a·mese twin \ˈsī-ə-ˌmēz-, -ˌmēs-\
Medical Definition of SIAMESE TWIN
: either of a pair of conjoined twins
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