English dictionary of medical terms (79)

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[Multilingual]No:1560 - sclerosis
(Gr. sklrosis hardness) a induration, or hardening; especially hardening of a part from inflammation and in diseases of the interstitial substance. The term is used chiefly for such a hardening of the nervous system due to hyperplasia of the connective tissue or to designate hardening of the blood vessels.
[Multilingual]No:1561 - scotoma
(Gr. skotoma) 1. an area of lost or depressed vision within the visual field, surrounded by an area of less depressed or of normal vision. 2. mental s.
[Multilingual]No:1562 - seborrhoea
(L. sebum suet + Gr. rhoia flow) 1. excessive secretion of sebum; called also hypersteatosis 2. seborrhoeic dermatitis.
[Multilingual]No:1563 - secondary
(L. secundarius; secundus second) second or inferior in order of time, place, or importance; derived from or consequent to a primary event or thing.
[Multilingual]No:1564 - secretion
(L. secretio, from secernere to secrete) 1. the process of elaborating a specific product as a result of the activity of a gland; this activity may range from separating a specific substance of the blood to the elaboration of a new chemical substance. 2. any substance produced by secretion.
[Multilingual]No:1565 - sedative
(L. sedativus) 1. allaying activity and excitement. 2. an agent that allays excitement.
[Multilingual]No:1566 - sedentary
(L. sedentarius) 1. sitting habitually; of inactive habits. 2. pertaining to a sitting posture.
[Multilingual]No:1567 - sediment
(L. sedimentum) a precipitate, especially one that is formed spontaneously.
[Multilingual]No:1568 - sedimentation
the act of causing the deposit of sediment, especially by the use of a centrifugal machine.
[Multilingual]No:1569 - segment
(L. segmentum a piece cut off) a portion of a larger body or structure, set off by natural or arbitrarily established boundaries.
[Multilingual]No:1570 - selectivity
in pharmacology, the degree to which a dose of a drug produces the desired effect in relation to adverse effects.
[Multilingual]No:1571 - semisynthetic
produced by chemical manipulation of naturally occurring substances.
[Multilingual]No:1572 - senility
old age; the physical and mental deterioration associated with old age.
[Multilingual]No:1573 - sensitization
1. administration of antigen to induce a primary immune response; priming; immunization. 2. exposure to allergen that results in the development of hypersensitivity. 3. the coating of erythrocytes with antibody so that they are subject to lysis by complement in the presence of homologous antigen, the first stage of a complement fixation test.
[Multilingual]No:1574 - sensory
(L. sensorius) pertaining to or subserving sensation.
[Multilingual]No:1575 - septic
(septic + Gr. sptikos) produced by or due to decomposition by microorganisms; putrefactive.
[Multilingual]No:1576 - septicemia
(septic + Gr. haima blood + -ia) systemic disease associated with the presence and persistence of pathogenic microorganisms or their toxins in the blood. Called also blood poisoning.
[Multilingual]No:1577 - septum
a dividing wall or partition; (NA) a general term for such a structure. The term is often used alone to refer to the septal area or to the septum pellucidum.
[Multilingual]No:1578 - sequela
any lesion or affection following or caused by an attack of disease.
[Multilingual]No:1579 - sequestrum
a piece of dead bone that has become separated during the process of necrosis from the sound bone.
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