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Definition of Bolthead
1. n. A long, straight-necked, glass vessel for chemical distillations; -- called also a matrass or receiver.
Definition of Bolthead
1. a matrass [n -S] - See also: matrass
Medical Definition of Bolthead
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1. n. A long, straight-necked, glass vessel for chemical distillations; -- called also a matrass or receiver.
1. a matrass [n -S] - See also: matrass
1. 
1.