Siamese
Siamese is a term used in naming certain still lifes (and the stator of certain oscillators). It indicates that the object consists of two smaller objects joined in such a way that they share two or more cells. (Still lifes sharing a single live cell are not possible: any shared live cell needs to have at least 2 neighbors for stability, which implies 4 or more neighbors in the combined still life -- unless at least one of the cell's neighbors is also shared.) Examples include carrier siamese carrier, broken snake, snake siamese snake, barge siamese loaf and elevener.
Snake siamese snake (two snakes joined together).
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