on/upon [phrasal verb] [T] - to use, accept or take advantage of (something) eagerly or enthusiasticallyThe story was seized on by the tabloid press who printed it under huge headlines.The loopholes in the law have already been seized upon by unscrupulous car dealers.
SEIZE
Meaning of SEIZE in English
Cambridge English vocab. Кембриджский английский словарь. 2012