| apoplast | <plant biology> Since the protoplasts of cells in a plant are connected through plasmodesmata, plants may be described as having two major compartments: the apoplast, which is external to the plasma membrane and includes cell walls, xylem vessels etc., through which water and solutes passes freely and the symplast, the total cytoplasmic compartment. (18 Nov 1997) |
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| apoplectic | Relating to, suffering from, or predisposed to apoplexy. (05 Mar 2000) |
| apoplectic cyst | A pseudocyst formed of extravasated blood as in a stroke. (05 Mar 2000) |
| apoplectic retinitis | An obsolete term for the appearance of the retina after occlusion of the central retinal vein. (05 Mar 2000) |
| apoplectical | Relating to apoplexy; affected with, inclined to, or symptomatic of, apoplexy; as, an apoplectic person, medicine, habit or temperament, symptom, fit, or stroke. Origin: L. Apoplecticus, Gr, fr., cf. F. Apoplectique. See Apoplexy. Source: Websters Dictionary (01 Mar 1998) |
| apoplectiform | Resembling apoplexy. (05 Mar 2000) |
| apoplexy | <clinical sign, neurology> Haemorrhage into the brain. A stroke. It is usually associated with loss of consciousness and paralysis of various parts of the body. (27 Sep 1997) |
| apoprotein | <protein> When a protein can exist as a complex between polypeptide and a second moiety of nonpolypeptide nature, the term apo protein is sometimes used to refer to the molecule divested of the latter. For example: ferritin lacking its ferric hydroxide core may be referred to as apoferritin. (18 Nov 1997) |
| apoprotein B100 | apolipoprotein B100 |
| apoprotein CII | apolipoprotein CII |
| apoptosis | <cell biology> Programmed cell death as signalled by the nuclei in normally functioning human and animal cells when age or state of cell health and condition dictates. An active process requiring metabolic activity by the dying cell, often characterised by cleavage of the DNA into fragments that give a so called laddering pattern on gels. Cells that die by apoptosis do not usually elicit the inflammatory responses that are associated with necrosis, though the reasons are not clear. Cancerous cells, however, are unable to experience the normal cell transduction or apoptosis-driven natural cell death process. See: ced mutant, bcl. (18 Nov 1997) |
| aporepressor | A repressor that cannot combine with an operator gene until it has combined with a corepressor (usually a product of a protein pathway); after activation, the repressor arrests production of the proteins controlled by the operator gene; a homeostatic mechanism for regulation of repressible enzyme systems. Synonym: aporepressor. (05 Mar 2000) |
| aporia | Doubt, especially deriving from incompatible views on the same subject. Origin: G. Aporia, difficulty, doubt (05 Mar 2000) |
| aporioneurosis | An obsolete term for anxiety neurosis. Origin: G. Aporia, difficulty, doubt, + neurosis (05 Mar 2000) |
| aporosa | <zoology> A group of corals in which the coral is not porous; opposed to Perforata. (06 Mar 1998) |
| apoplectic |
(ap
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| apoplexy |
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| apothecary |
(apoth
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| aponeurotic |
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| apophyseal |
(apoph
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| APO | (New Testament) a Christian missionary to the Gentiles |
|---|---|
| APO | the position of apostle |
| APO | of or relating to or deriving from the Apostles or their teachings |
| APO | proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles |
| APO | (Roman Catholic) a representative of the Holy See in a country that has no formal diplomatic relations with it |
| APO | of or relating to or deriving from the Apostles or their teachings |
| APO | the mark (') used to indicate the omission of one or more letters from a printed word |
| APO | address to an absent or imaginary person |
| APO | of or characteristic of apostrophe |
| APO | use an apostrophe |
| APO | use an apostrophe |
| APO | a unit of apothecary weight equal to 480 grains or one twelfth of a pound |