Definition of bioss:
(n) :
(computing, informal, by extension) any firmware user interface that provides similar functionality as BIOS, such as UEFI.
(n) :
In the philosophy of Giorgio Agamben, a particular mode of life; "qualified life", as opposed to the bare life or zoe.
(n) :
(obsolete) A vitamin essential for the growth of yeast, since found to be several B vitamins.
(n) :
(computing) Acronym of Basic Input/Output System.