Bolthead

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Bolthead \Bolt"head`\, n.
     1. (Chem.) A long, straight-necked, glass vessel for chemical
        distillations; -- called also a {matrass} or receiver.
        [1913 Webster]
  
     2. The head of a bolt.


        [1913 Webster]