hypostasis

hypostasis
1. Formation of a sediment at the bottom of a liquid. 2. SYN: 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; e.g., 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]
- postmortem h. SYN: postmortem livedo.

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hy·pos·ta·sis hī-'päs-tə-səs n, pl -ta·ses -.sēz
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

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n.
accumulation of fluid or blood in a dependent part of the body, under the influence of gravity, in cases of poor circulation. Hypostatic congestion of the lung bases may be seen in debilitated patients who are confined to bed. It predisposes to pneumonia (hypostatic pneumonia) but it may be prevented by careful nursing and physiotherapy. A similar condition affects the dependent parts of the body after death.
hypostatic adj.

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hy·pos·ta·sis (hi-posґtə-sis) [hypo- + stasis] poor or stagnant circulation of the blood in a dependent part of the body or organ, as in venous insufficiency.

Medical dictionary. 2011.

Synonyms:

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  • Hypostasis — Hy*pos ta*sis, n.; pl. {Hypostases}. [L., fr. Gr. ? subsistence, substance, fr. ? to stand under; ? under + ? to stand, middle voice of ? to cause to stand. See {Hypo }, and {Stand}.] 1. That which forms the basis of anything; underlying… …   The Collaborative International Dictionary of English

  • hypostasis — hypostasis. См. гипостаз. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Hypostăsis — (gr.), 1) so v.w. Wesen, Natur; s.u. Trinität; daher Hypostatisch, wesentlich, persönlich; Hypostasiren, ein Merkmal eines Gegenstandes selbst zu einem Gegenstand machen, od. es als solchen behandeln; 2) (Chem.), Bodensatz, bes. Harnsatz; 3)… …   Pierer's Universal-Lexikon

  • Hypostasis — Hypostasis, griech., Grundlage, Wesen, Persönlichkeit; daher hypostatisch, wesentlich, persönlich; hypostasiren, etwas als Gegenstand betrachten, das Merkmal für den Gegenstand selbst setzen …   Herders Conversations-Lexikon

  • hypostasis — index center (essence), essence, spirit, substance (essential nature) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • HYPOSTASIS — Graece Υ῾πόςτασις, vox in Eccl. Dei frequens: In Symbolo Athanasii occurrit, de Persona, praeeunte Scripturâ, Hebr. c. 1. v. 3. Ubi Christus dicitur χαρακτὴρ τῆς ὑποςτάσεως τȏυ πατρὸς, Character subsistentiae (i. e. personae) Partis, q. d. imago… …   Hofmann J. Lexicon universale

  • hypostasis — [hī päs′tə sis, hipäs′tə sis] n. pl. hypostases [hī päs′təsēz΄, hi päs′tə sēz΄] [Gr, a supporting, foundation < hyphistanai, to set under, pass, stand under < hypo , under (see HYPO ) + histanai, to STAND, cause to stand] 1. the masking or… …   English World dictionary

  • Hypostasis — See:* Hypostatic abstraction * Hypostasis (linguistics) * Hypostasis (organization) * Hypostasis (philosophy) * Hypostasis (medicine) …   Wikipedia

  • hypostasis — noun /hʌɪˈpɒstəsɪs/ a) The essential person, specifically the single person of Christ (as distinguished from his two ‘natures’, human and divine), or of the three ‘persons’ of the Trinity (comprising a single ‘essence’). Physician: I have viewed… …   Wiktionary

  • Hypostasis — Hy|pos|ta|sis die; , ...asen <über spätlat. hypostasis aus gleichbed. gr. hypóstasis> svw. ↑Hypostase …   Das große Fremdwörterbuch

  • Hypostasis — hipostazė statusas T sritis ekologija ir aplinkotyra apibrėžtis Vieno kurio nors geno reiškimosi organizmo fenotipe slopinimas. Lemia nealelinis genas ar genų grupė, esanti kitoje tos pačios chromosomos vietoje arba kitoje chromosomoje.… …   Ekologijos terminų aiškinamasis žodynas

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