| OPP | Organo-Phosphorous Pesticide; À¯±âÀÎÁ¦ 1. Parathion 2. DDVP 3. Malathion 4. Ethion 5. Diazinon 6. Phorate |
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| OPP | osmotic pressure of plasma; oxygen partial pressure |
| opp | opposite |
| OPPA | vincristine, procarbazine, prednisone, Adriamycin |
| OPPG | oculopneumoplethysmography |
| OPP | O-Phenylphenol |
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| OPP | Ocular Perfusion Pressure |
| OPP | Ortho-phenylphenol |
| OPP | Ovine progressive pneumonia |
| Opp | oligopeptide permease |
| Oppenheim's disease | Atonic pseudoparalysis of congenital origin (neither familial nor hereditary), observed especially in infants and characterised by absences of muscular tone only in muscles innervated by the spinal nerves. Synonym: congenital atonic pseudoparalysis, myatonia congenita, Oppenheim's disease, Oppenheim's syndrome. An indefinite term for a number of congenital neuromuscular disorders that cause generalised myotonia in young children, and that have a benign course (static or regressive). (05 Mar 2000) |
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| Oppenheim's reflex | Extension of the toes induced by scratching of the inner side of the leg or by following sudden flexion of the thigh on the abdomen and the leg on the thigh; a sign of cerebral irritation. (05 Mar 2000) |
| Oppenheim's syndrome | Atonic pseudoparalysis of congenital origin (neither familial nor hereditary), observed especially in infants and characterised by absences of muscular tone only in muscles innervated by the spinal nerves. Synonym: congenital atonic pseudoparalysis, myatonia congenita, Oppenheim's disease, Oppenheim's syndrome. An indefinite term for a number of congenital neuromuscular disorders that cause generalised myotonia in young children, and that have a benign course (static or regressive). (05 Mar 2000) |
| Oppenheim, Hermann | <person> Berlin neurologist, 1858-1919. See: Oppenheim's disease, Oppenheim's reflex, Oppenheim's syndrome, Ziehen-Oppenheim disease. (05 Mar 2000) |
| oppilation | Obstruction or closing of the pores. Origin: L. Oppilatio, fr. Op-pilo (obp-), pp. -atus, to stop up, fr. Pilo, to ram down (05 Mar 2000) |
| oppilative | Obstructive to any secretion. (05 Mar 2000) |
| opponens | A name given to several muscles of the fingers or toes, by the action of which these digits are opposed to the others. The opponens muscles of the hands act at the carpometacarpal joints, cupping the palm; this enables flexion at the metacarpophalangeal joints to oppose the thumb to the small finger or vice versa. Although comparable muscles in the foot are called "opponens" no opposition occurs in the foot. Origin: L. Op-pono (obp-), pres. P. -ens, to place against, oppose (05 Mar 2000) |
| opponens digiti minimi | <anatomy, muscle> Origin, hamulus of the hamate bone and transverse carpal ligament; insertion, shaft of fifth metacarpal; action, "cups" palm, drawing ulnar side of hand toward centre of palm; nerve supply, ulnar. Synonym: musculus opponens digiti minimi, musculus opponens digiti quinti, musculus opponens minimi digiti, opposer muscle of little finger. (05 Mar 2000) |
| opponens pollicis | <anatomy, muscle> Origin, ridge of trapezium and flexor retinaculum; insertion, anterior surface of the full length of the shaft of the first metacarpal bone; action, acts at carpometacarpal joint to "cup" palm, enabling one to oppose thumb to other fingers; nerve supply, median. Synonym: musculus opponens pollicis, opposer muscle of thumb. (05 Mar 2000) |
| opponent colour | Pairs of colour that share colour channels in the retina (red-green, blue-yellow, black-white). (05 Mar 2000) |
| opportunistic | 1. <microbiology> Denoting a microorganism that does not ordinarily cause disease but that, under certain circumstances (for example impaired immune responses resulting from other disease or drug treatment), becomes pathogenic. 2. <disease> Denoting a disease or infection caused by such an organism. (18 Nov 1997) |
| opportunistic infections | Infections that occur in persons with weak immune systems due to AIDS, cancer or immunosuppressive drugs such as corticosteroids or chemotherapy. PCP, toxoplasmosis and cytornegalovirus are all examples of OIs. (09 Oct 1997) |
| opportunistic pathogen | <microbiology> Pathogenic organism that is often normally a commensal, but which gives rise to infection in immunocompromised hosts. (18 Nov 1997) |
| oppose | 1. To place in front of, or over against; to set opposite; to exhibit. "Her grace sat down . . . In a rich chair of state; opposing freely The beauty of her person to the people." (Shak) 2. To put in opposition, with a view to counterbalance or countervail; to set against; to offer antagonistically. "I may . . . Oppose my single opinion to his." (Locke) 3. To resist or antagonize by physical means, or by arguments, etc.; to contend against; to confront; to resist; to withstand; as, to oppose the king in battle; to oppose a bill in Congress. 4. To compete with; to strive against; as, to oppose a rival for a prize. "I am . . . Too weak To oppose your cunning." (Shak) Synonym: To combat, withstand, contradict, deny, gainsay, oppugn, contravene, check, obstruct. Origin: F. Opposer. See Ob-, Pose, and cf.2d Appose, Puzzle, Cf.L. Opponere, oppositum. Source: Websters Dictionary (01 Mar 1998) |
| opposer muscle of little finger | <anatomy, muscle> Origin, hamulus of the hamate bone and transverse carpal ligament; insertion, shaft of fifth metacarpal; action, "cups" palm, drawing ulnar side of hand toward centre of palm; nerve supply, ulnar. Synonym: musculus opponens digiti minimi, musculus opponens digiti quinti, musculus opponens minimi digiti, opposer muscle of little finger. (05 Mar 2000) |
Synonyms : Infection, Opportunistic, Infections, Opportunistic, Opportunistic Infection
| opportunistic infection |
any infection caused by a microorganism that does not normally cause disease in humans; occurs in persons with abnormally functioning immune systems (as AIDS patients or transplant patients receiving immunosuppressive drugs)
Ãâó: wordnet.princeton.edu/perl/webwn
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| opposition |
resistance: the action of opposing something that you disapprove or disagree with; "he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he went ahead" the relation between opposed entities confrontation: the act of hostile groups opposing each other; "the government was not ready for a confrontation with the unions"; "the invaders encountered stiff opposition" a contestant that you are matched against a body of people united in opposing something a direction opposite to another enemy: an armed adversary (especially a member of an opposing military force); "a soldier must be prepared to kill his enemies" the major political party opposed to the party in office and prepared to replace it if elected; "Her Majesty's loyal opposition"
Ãâó: wordnet.princeton.edu/perl/webwn
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| opportunistic |
opportunist: taking immediate advantage, often unethically, of any circumstance of possible benefit
Ãâó: wordnet.princeton.edu/perl/webwn
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| opportunistic infection |
infection by an organism that does not ordinarily cause disease but that, under certain circumstances (eg, impaired immune responses), becomes pathogenic.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| oppositional defiant disorder |
[DSM-IV] a type of disruptive behavior disorder characterized by a recurrent pattern of defiant, hostile, disobedient, and negativistic behavior directed toward those in authority, including such actions as defying the requests or rules of adults, deliberately annoying others, arguing, spitefulness, and vindictiveness that occur much more frequently than would be expected on the basis of age and developmental stage.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| OPP | American physicist who directed the project at Los Alamos that developed the first atomic bomb (1904-1967) |
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| OPP | someone who offers opposition |
| OPP | a contestant that you are matched against |
| OPP | characterized by active hostility |
| OPP | at a convenient or suitable time |
| OPP | suitable or at a time that is suitable or advantageous especially for a particular purpose |
| OPP | at an opportune time |
| OPP | timely convenience |
| OPP | taking advantage of opportunities without regard for the consequences for others |
| OPP | a person who places expediency above principle |
| OPP | taking immediate advantage, often unethically, of any circumstance of possible benefit |
| OPP | taking immediate advantage, often unethically, of any circumstance of possible benefit |
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