blow·torch 
(blōtôrch′)
(blōtôrch′)n.
A portable burner for mixing gas and oxygen to produce a very hot flame, used for soldering, welding, and glass blowing.
- bioactivity
- bioassay
- bioastronautical
- bioastronautics
- bioavailability
- bioavailable
- biobank
- biobased
- biobehavioral
- bio-bibliography
- biobibliography
- biocatalyst
- biocatalytic
- biocenology
- biocenosis
- biochem
- biochemical
- biochemically
- biochemical oxygen demand
- biochemist
- biochemistry
- biochip
- biocidal
- biocide
- bioclimatic