Main Entry: hy·pos·ta·sis

Pronunciation: \hī-ˈpäs-tə-səs\

Function: noun

Inflected Form(s): plural hy·pos·ta·ses \-ˌsēz\

1 : the settling of blood in relatively lower parts of an organ or the body due to impaired or absent circulation <the face was discolored by postmortem hypostasis>
2 : failure of a gene to produce its usual effect when coupled with another gene that is epistatic toward it