foreign element;  impurity;  admixture
 oleander;  Nerium oleander var. indicum;  rosebay
 (in China) 4th note of the ancient chromatic scale (approx. F);  second lunar month
 attack on both sides;  pincer movement;  double envelopment
 flanking image (e.g. in a Buddha triad)
 contained angle;  included angle