al·ka·hest 
(ălkə-hĕst′)
(ălkə-hĕst′)n.
The hypothetical universal solvent once sought by alchemists.
[Medieval Latin alchahest, first used by Paracelsus (1493-1541), and said to have been coined by him in imitation of Arabic words .]
al′ka·hestic adj.
- bioactive
- 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