genus Polypodium genus Polypodium /pəˈlɒpɪdiəm/

noun

1. A genus of ferns belonging to the family Polypodiaceae and having rounded naked sori  ( genus Polypodium , Polypodium )
   a genus of ferns belonging to the family Polypodiaceae and having rounded naked sori
   
   

 crustacean crustacean /krəˈsteɪʃən/

adjective

1. Of or belonging to the class Crustacea  ( crustacean , crustaceous )
   of or belonging to the class Crustacea
   

noun

1. Any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton  ( crustacean )
   any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
   
   

 militarism militarism /ˈmɪlətɝˌɪzəm/

noun

1. A political orientation of a people or a government to maintain a strong military force and to be prepared to use it aggressively to defend or promote national interests  ( militarism )
   a political orientation of a people or a government to maintain a strong military force and to be prepared to use it aggressively to defend or promote national interests
    The regime's inclination towards militarism was evident in its vast military parades.
   The regime's inclination towards militarism was evident in its vast military parades.
   
   

 gun trigger gun trigger /ˈgʌn ˈtrɪɡər/

noun

1. Lever that activates the firing mechanism of a gun  ( gun trigger , trigger )
   lever that activates the firing mechanism of a gun
     He pulled the trigger, firing the gun.
   He pulled the trigger, firing the gun.