adj.
Pronunciation: ˌ s ī - ə - ' m ē z, - ' m ē s
Function: adjective
Etymology: Siam (Thailand); in senses 2 & 3, from Siamese twin
Date: 1693
1 : of, relating to, or characteristic of Thailand, the Thais, or their language
2 : exhibiting great resemblance : very like
3 not capitalized : connecting two or more pipes or hoses so as to permit discharge in a single stream