| passive hyperaemia | Hyperaemia due to an obstruction in the flow of blood from the affected part, the venous radicles becoming distended. Synonym: venous hyperaemia. (05 Mar 2000) |
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| arterial hyperaemia | active hyperaemia |
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| Bier's hyperaemia | An obsolete term for hyperaemia produced by Bier's method. Collateral hyperaemia, increased blood flow through abundant collateral channels when the circulation through the main artery to a part is arrested, as when the blood supply to one lung or to a portion of it is occluded the blood flow to the other lung or portion of a lung is increased. Constriction hyperaemia, obsolete term for hyperaemia produced by Bier's method. (05 Mar 2000) |
| venous hyperaemia | Hyperaemia due to an obstruction in the flow of blood from the affected part, the venous radicles becoming distended. Synonym: venous hyperaemia. (05 Mar 2000) |
| reactive hyperaemia | Hyperaemia following the arrest and subsequent restoration of the blood supply to a part. (05 Mar 2000) |
| peristatic hyperaemia | Phases of inactivity of vasoconstriction in inflammation. Synonym: peristatic hyperaemia. Origin: peri-+ G. Stasis, a standing still (05 Mar 2000) |
| hyperaemia | <haematology> An excess of blood in a part, engorgement. (04 Mar 1998) |
| fluxionary hyperaemia | active hyperaemia |
| artificial passive immunity | See: acquired immunity. (05 Mar 2000) |
| passive | Neither spontaneous nor active, not produced by active efforts. Origin: L. Passivus (18 Nov 1997) |
| passive agglutination | Agglutination of particles that have been coated with soluble antigen, by antiserum specific for the adsorbed antigen. Synonym: indirect agglutination. (05 Mar 2000) |
| passive-aggressive behaviour | Apparently compliant behaviour, with intrinsic obstructive or stubborn qualities, to cover deeply felt aggressive feelings that cannot be more directly expressed. (05 Mar 2000) |
| passive-aggressive personality | A personality disorder in which aggressive feelings are manifested in passive ways, especially through mild obstructionism and stubbornness. (05 Mar 2000) |
| passive-aggressive personality disorder | A personality disorder characterised by an indirect resistance to demands for adequate social and occupational performance; anger and opposition to authority and the expectations of others that is expressed covertly by obstructionism, procrastination, stubbornness, dawdling, forgetfulness, and intentional inefficiency. (12 Dec 1998) |
| passive anaphylaxis | A reaction resulting from inoculation of antigen in an animal previously inoculated intravenously with specific antiserum from another animal, a latent period being required between the two inoculations. Synonym: antiserum anaphylaxis. (05 Mar 2000) |
| passive atelectasis | The pulmonary collapse that occurs due to a space-occupying intrathoracic process such as pneumothorax or hydrothorax. (05 Mar 2000) |