| FN | false negative; fibronectin; fluoride number |
|---|---|
| Fneg | false negative |
| FNF | false-negative fraction; femoral neck fracture |
| FNT | false neurochemical transmitter; farnesyltransferase |
| FP | false positive; family physician; family planning; family practice; family practitioner; Fanconi pan... |
| false anaemia | Pallor of the skin and mucous membranes without the blood changes of anaemia. Synonym: false anaemia. (05 Mar 2000) |
|---|---|
| false aneurysm | <surgery> Pulsating, encapsulated haematoma in communication with the lumen of a ruptured vessel, ventricular pseudoaneurysm, a cardiac rupture contained and loculated by pericardium, which forms its external wall. An aneurysm whose walls consist of adventitia and periarterial fibrous tissue and haematoma. (05 Mar 2000) |
| false angina | <symptom> Angina-like sensation in absence of myocardial ischemia. (05 Mar 2000) |
| false ankylosis | Stiffening of a joint due to the presence of fibrous bands between and about the bones forming the joint. Synonym: false ankylosis, pseudankylosis. Intracapsular ankylosis, stiffness of a joint due to the presence of bony or fibrous adhesions between the articular surfaces of the joint. (05 Mar 2000) |
| false Becke line | <microscopy> A second bright line which moves in the direction opposite to the Becke line. It is usually observed with thick particles or when the refractive index difference between particles and mountant is large. It appears as a concentration of reflected light at the high index side of the interface. (05 Aug 1998) |
| false blepharoptosis | A condition resembling an inability to elevate the eyelid, due to blepharophimosis, blepharochalasis, or some other affection. Synonym: false blepharoptosis. Origin: pseudo-+ G. Ptosis, a falling (05 Mar 2000) |
| false branching | <microbiology> In bacteriology, the appearance of branching produced when a cell is pushed out of the general line of growth and develops a new line of growth while the remaining cells continue to develop along the original line of growth. (05 Mar 2000) |
| false cast | <nephrology> An elongated, ribbon-like mucous thread with poorly defined edges and pointed or split ends, often confused with a true urinary cast. Synonym: cylindroid, mucous cast, pseudocast, spurious cast. (05 Mar 2000) |
| false conjugate | The anteroposterior dimension of the inlet that measures the clinical distance from the promontory of the sacrum to the lower margin of the symphysis pubica. Synonym: conjugata diagonalis, diagonal conjugate diameter, false conjugate. (05 Mar 2000) |
| false coxa vara | <orthopaedics> Approximation of the head of the femur to the shaft, due not to deformity of the neck of the femur, but to curvature of the shaft. Coxa magna, enlargement and often deformation of femoral head; usually refers to a sequela of Legg-Calve-Perthes disease or osteoarthritis. (05 Mar 2000) |
| false cyst | 1. An accumulation of fluid in a cystlike loculus, but without an epithelial or other membranous lining. Synonym: adventitious cyst, false cyst. 2. A cyst whose wall is formed by a host cell and not by a parasite. 3. A mass of 50 or more Toxoplasma bradyzoites, found within a host cell, frequently in the brain; formerly called a pseudocyst, but now considered a true cyst enclosed in its own membrane within the host cell that may rupture to release particles that form new cysts, and apparently is infective to another vertebrate host. See: bradyzoite. Origin: pseudo-+ G. Kystis, bladder (05 Mar 2000) |
| false dextrocardia | Displacement and rotation of the heart into the right side of the chest but without mirror transposition of the cardiac chambers. Synonym: dextroversion of the heart, false dextrocardia, type 3 dextrocardia. (05 Mar 2000) |
| false diphtheria | 1. One of a group of local infections suggesting diphtheria, but caused by microorganisms other than Corynebacterium diphtheriae. Synonym: Epstein's disease, false diphtheria, pseudodiphtheria. 2. Any microorganism resembling Corynebacterium diphtheriae. Origin: diphtheria + G. Eidos, resemblance (05 Mar 2000) |
| false diverticulum | <surgery> A diverticulum of the intestine that passes through a defect in the muscular wall of the gut and thus does not include a layer of muscle in its wall. (05 Mar 2000) |
| false dominance | Simulation by a recessive trait of the pedigree of dominant inheritance (i.e., recurrence in several generations) by repeated, and often occult, consanguineous matings. Synonym: false dominance. (05 Mar 2000) |