hy·pos·ta·sis noun \hī-ˈpäs-tə-səs\
plural hy·pos·ta·ses \-ˌsēz\
: 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>
: failure of a gene to produce its usual effect when coupled with another gene that is epistatic toward it
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