United States government United States government /juːˈnaɪtɪd ˈsteɪts ˈɡʌvərnmənt/

noun

1. The executive and legislative and judicial branches of the federal government of the United States  ( United States government , US Government , U.S. government , U.S. , United States )
   the executive and legislative and judicial branches of the federal government of the United States
     The U.S. government implemented new immigration policies.
   The U.S. government implemented new immigration policies.
   
   

 mistress mistress /ˈmɪstrəs/

noun

1. () An adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man  ( fancy woman [Vulgar] , kept woman [Informal] , bit on the side [Informal, British] , mistress )
   an adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man
     The wealthy businessman had a secret mistress with whom he shared his life.
   The wealthy businessman had a secret mistress with whom he shared his life.
   
   
2. A woman master who directs the work of others  ( mistress )
   a woman master who directs the work of others
   
3. A woman schoolteacher (especially one regarded as strict)  ( mistress , schoolma'am [ N. American] , schoolmarm [ N. American] , schoolmistress )
   a woman schoolteacher (especially one regarded as strict)
   

 refractory refractory /rəˈfræktɝi/

adjective

1. Stubbornly resistant to authority or control  ( fractious , recalcitrant , refractory , incalcitrant [Non-standard] )
   stubbornly resistant to authority or control
    A fractious animal that would not submit to the harness
   a fractious animal that would not submit to the harness
    A refractory child
   a refractory child
   
2. Temporarily unresponsive or not fully responsive to a process or stimulus  ( refractory )
   temporarily unresponsive or not fully responsive to a process or stimulus
    The refractory period of a muscle fiber
   the refractory period of a muscle fiber
   
3. Not responding to treatment  ( refractory , stubborn )
   not responding to treatment
    A stubborn infection
   a stubborn infection
    A refractory case of acne
   a refractory case of acne
    Stubborn rust stains
   stubborn rust stains
   

noun

1. Lining consisting of material with a high melting point; used to line the inside walls of a furnace  ( furnace lining , refractory )
   lining consisting of material with a high melting point; used to line the inside walls of a furnace
   
   

 genus Vaccinium genus Vaccinium /ˈdʒiːnəs vəˈkɪniəm/

noun

1. Evergreen or deciduous berry-bearing shrubs of Northern Hemisphere: cranberries; blueberries  ( genus Vaccinium , Vaccinium )
   evergreen or deciduous berry-bearing shrubs of Northern Hemisphere: cranberries; blueberries