muscle spasm muscle spasm /ˈmʌsəl ˈspæzəm/

noun

1. A painful and involuntary muscular contraction  ( muscle spasm , cramp , spasm )
   a painful and involuntary muscular contraction
    I had a cramp in my leg while I was running, and it was very painful
   I had a cramp in my leg while I was running, and it was very painful
   
   

 delirium tremens delirium tremens /dɪˈlɪriəm ˈtriːmənz/

noun

1. Acute delirium caused by alcohol poisoning  ( delirium tremens , DTs )
   acute delirium caused by alcohol poisoning
   
   

 antagonist antagonist /ænˈtæɡənɪst/

noun

1. () Someone who offers opposition  ( opposer , resister , adversary , antagonist , opponent )
   someone who offers opposition
     The antagonist in the story constantly challenged the protagonist's goals.
   The antagonist in the story constantly challenged the protagonist's goals.
   
   
2. A drug that neutralizes or counteracts the effects of another drug  ( antagonist )
   a drug that neutralizes or counteracts the effects of another drug
   
3. A muscle that relaxes while another contracts  ( antagonist )
   a muscle that relaxes while another contracts
    When bending the elbow the triceps are the antagonist
   when bending the elbow the triceps are the antagonist
   

 pinion pinion /ˈpɪnjən/

noun

1. Wing of a bird  ( pennon , pinion )
   wing of a bird
   
2. Any of the larger wing or tail feathers of a bird  ( flight feather , pinion , quill , quill feather )
   any of the larger wing or tail feathers of a bird
   
   
3. A gear with a small number of teeth designed to mesh with a larger wheel or rack  ( pinion )
   a gear with a small number of teeth designed to mesh with a larger wheel or rack
    The malfunction was traced back to a damaged pinion in the machinery.
   The malfunction was traced back to a damaged pinion in the machinery.
   
   

verb

1. Cut the wings off (of birds)  ( pinion )
   cut the wings off (of birds)
   
2. Bind the arms of  ( pinion , shackle )
   bind the arms of