hypostasis

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hypostasis

 [hi-pos´tah-sis]
poor or stagnant circulation, often with a deposit or sediment, in a dependent part of the body or an organ.

hy·pos·ta·sis

(hi-pos'tă-sis),
1. Formation of a sediment at the bottom of a liquid.
2. Synonym(s): hypostatic congestion
3. The phenomenon whereby the phenotype that would ordinarily be manifested at one locus is obscured by the genotype at another epistatic locus; for example, in humans, the phenotype for the ABO blood group locus can be expressed only in the presence of its precursor, H substance. The Bombay factor in the homozygous state blocks H formation and obscures the ABO phenotype.
[G. hypo-stasis, a standing under, sediment]

hypostasis

/hy·pos·ta·sis/ (hi-pos´tah-sis) poor or stagnant circulation in a dependent part of the body or an organ.

hypostasis

(hī-pŏs′tə-sĭs)
n. pl. hyposta·ses (-sēz′)
1. Philosophy The substance, essence, or underlying reality.
2. Christianity
a. Any of the persons of the Trinity.
b. The essential person of Jesus in which his human and divine natures are united.
3. Something that has been hypostatized.
4.
a. A settling of solid particles in a fluid.
b. Something that settles to the bottom of a fluid; sediment.
5. Medicine The settling of blood in the lower part of an organ or the body as a result of decreased blood flow.
6. Genetics A condition in which the action of one gene is concealed or suppressed by the action of an allele of a different gene that affects the same part or biochemical process in an organism.

hy′po·stat′ic (hī′pə-stăt′ĭk), hy′po·stat′i·cal adj.
hy′po·stat′i·cal·ly adv.

hy·pos·ta·sis

(hi-pos'tă-sis)
1. Formation of a sediment at the bottom of a liquid.
2. Synonym(s): hypostatic congestion.
3. The phenomenon whereby the phenotype that would ordinarily be manifested at one locus is obscured by the genotype at another epistatic locus.
[G. hypo-stasis, a standing under, sediment]

hypostasis

a relationship between two genes whose products act in the same biochemical PATHWAY, where the functional effect of one gene is masked by another. The enzyme coded by the hypostatic gene operates later in the pathway than the enzyme produced by the epistatic gene. see EPISTASIS.

hypostasis

poor or stagnant circulation in a dependent part of the body or an organ.