nounWord forms: plural -ses (-ˌsiːz)1. metaphysics the essential nature of a substance as opposed to its attributes
2. Christianitya. any of the three persons of the Godhead, together constituting the Trinity
b. the one person of Christ in which the divine and human natures are united
3. the accumulation of blood in an organ or part, under the influence of gravity as the result of poor circulation
4. another name for epistasis (sense 3)
Word origin
C16: from Late Latin: substance, from Greek
hupostasis foundation, from
huphistasthai to stand under, from
hypo- +
histanai to cause to stand