buckshot buckshot /ˈbʌkˌʃɑːt/

noun

1. Small lead shot for shotgun shells  ( buckshot , duck shot , bird shot )
   small lead shot for shotgun shells
    The hunter loaded his shotgun with bird shot for the upcoming duck season.
   The hunter loaded his shotgun with bird shot for the upcoming duck season.
   
   

 twig twig /ˈtwɪg/

noun

1. () A small branch or division of a branch (especially a terminal division); usually applied to branches of the current or preceding year  ( branchlet , sprig , twig )
   a small branch or division of a branch (especially a terminal division); usually applied to branches of the current or preceding year
    The tiny twig snapped under the weight of the snow.
   The tiny twig snapped under the weight of the snow.
   
   

verb

1. () Branch out in a twiglike manner  ( twig )
   branch out in a twiglike manner
    The lightning bolt twigged in several directions
   The lightning bolt twigged in several directions
   
2. Understand, usually after some initial difficulty  ( cotton on , get wise , latch on , catch on , get it , get onto , tumble , twig )
   understand, usually after some initial difficulty
    She didn't know what her classmates were plotting but finally caught on
   She didn't know what her classmates were plotting but finally caught on
   

 radioactive waste radioactive waste /ˌreɪdioʊˈæktɪv weɪst/

noun

1. Useless radioactive materials that are left after some laboratory or commercial process is completed  ( radioactive waste )
   useless radioactive materials that are left after some laboratory or commercial process is completed
    Proper disposal of radioactive waste is crucial to prevent environmental contamination.
   Proper disposal of radioactive waste is crucial to prevent environmental contamination.
   
   

 genus Halcyon genus Halcyon /ˈdʒiːnəs ˈhælsiːɒn/

noun

1. A large kingfisher widely distributed in warmer parts of the Old World  ( genus Halcyon , Halcyon )
   a large kingfisher widely distributed in warmer parts of the Old World