accelerator (redirected from Acclerator)

accelerator /ac·cel·er·a·tor/ (ak-sel´er-a?ter) [L.]

1. an agent or apparatus that increases the rate at which something occurs or progresses.

2. any nerve or muscle that hastens the performance of a function.

3. any of a group of chemicals used in the vulcanization of rubber or other polymerization reactions.

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serum prothrombin conversion accelerator  (SPCA) coagulation factor VII.

serum thrombotic accelerator  a factor in serum which has procoagulant properties and the ability to induce blood coagulation.

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ac·cel·er·a·tor (k-sl-rtr)

n.

1. One that increases rapidity of action or function.

2. A nerve, muscle, or substance that quickens movement or response.

3. A catalyst.

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accelerator (aksel´rātur),

n 1. a substance that increases rapidity of action or function.
n 2. a catalyst or other substance that hastens a chemical reaction (e.g., NaCl added to water and plaster to hasten the set).
n 3. a film-developing solution of potassium hydroxide or sodium carbonate used to enlarge the emulsion and to establish an alkaline medium.

accelerator, platelet thrombin,

n See factor, platelet 2.

accelerator, prothrombin conversion, I

n (factor V, labile factor, plasma accelerator globulin, proaccelerin, serum accelerator globulin), a substance that is considered by some to be a factor in serum and plasma that catalyzes the conversion of inactive prothrombin to an active form.

accelerator, prothrombin conversion, II,

n (extrinsic thromboplastin, factor VII, serum prothrombin conversion accelerator [SPCA], stable factor), a substance that is considered by some to be one of the factors in the blood that accelerates the conversion of active prothrombin to thrombin by thromboplastin. Vitamin K deficiency reduces the activity of this factor.

accelerator, serum,

n See factor V.

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accelerator

[L.] an agent or apparatus that increases the rate at which something occurs or progresses.

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developing accelerator

alkaline constituent of an x-ray developer which controls the rate of development. Called also activator.

accelerator factor, accelerator globulin

factor V, one of the blood clotting factors. Called also proaccelerin.

serum prothrombin conversion accelerator (SPCA)

clotting factor VII; see proconvertin.