absorptivity
absorption factor | (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body |
sun protection factor
SPF | the degree to which a sunscreen protects the skin from the direct rays of the sun |
releasing hormone
RH
releasing factor
hypothalamic releasing hormone
hypothalamic releasing factor | any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones, each of these hormones causes the anterior pituitary to secrete a specific hormone |
gene
cistron
factor | (genetics) a segment of DNA that is involved in producing a polypeptide chain, it can include regions preceding and following the coding DNA as well as introns between the exons, it is considered a unit of heredity, genes were formerly called factors |
| cognitive factor | something immaterial (as a circumstance or influence) that contributes to producing a result |
determinant
determiner
determinative
determining factor
causal factor | a determining or causal element or factor, education is an important determinant of one's outlook on life |
clincher
decisive factor | a point or fact or remark that settles something conclusively |
| factor | an independent variable in statistics |
component
constituent
element
factor
ingredient | an abstract part of something, jealousy was a component of his character, two constituents of a musical composition are melody and harmony, the grammatical elements of a sentence, a key factor in her success, humor: an effective ingredient of a speech |
| factor analysis | any of several methods for reducing correlational data to a smaller number of dimensions or factors, beginning with a correlation matrix a small number of components or factors are extracted that are regarded as the basic variables that account for the interrelations observed in the data |
Sixteen Personality Factor Questionnaire
PF | a selfeport personality inventory developed by Raymond B. Cattell to measure the personality dimensions that emerged from his factor analysis of a wide range of traits |
clincher
determiner determining factor | an argument that is conclusive |
| factor | anything that contributes causally to a result, a number of factors determined the outcome |
agent factor
broker | a businessman who buys or sells for another in exchange for a commission |
coefficient of reflection
reflection factor
reflectance
reflectivity | the fraction of radiant energy that is reflected from a surface |
| factor | any of the numbers (or symbols) that form a product when multiplied together |
| conversion factor | factor by which a quantity that is expressed in one set of units must be multiplied in order to convert it into another set of units |
factor of proportionality
constant of proportionality | the constant value of the ratio of two proportional quantities x and y, usually written y kx, where k is the factor of proportionality |
| prime factor | the prime factors of a quantity are all of the prime quantities that will exactly divide the given quantity |
| divisor factor | one of two or more integers that can be exactly divided into another integer, what are the factors of ? |
multiplier
multiplier factor | the number by which a multiplicand is multiplied |
| scale factor | a number used as a multiplier in scaling |
| time-scale factor | the ratio of the simulation time to the time of the real process |
| equivalent-binary-digit factor | the average number of binary digits needed to express one radix digit in a numeration system that is not binary, on the average a number that can be expressed in N decimal digits takes .N binary digits |
common divisor
common factor
common measure | an integer that divides two (or more) other integers evenly |
greatest common divisor
greatest common factor
highest common factor | the largest integer that divides without remainder into a set of integers |
correction
fudge factor | a quantity that is added or subtracted in order to increase the accuracy of a scientific measure |
| load factor | (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g) |
safety factor
factor of safety | the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use |
| rheumatoid factor | autoantibody that is usually present in the serum of people with rheumatoid arthritis |
| growth factor | a protein that is involved in cell differentiation and growth |
nerve growth factor
NGF | a protein that is involved in the growth of peripheral nerve cells |
tumor necrosis factor
tumour necrosis factor
TNF | a proinflammatory cytokine that is produced by white blood cells (monocytes and macrophages), has an antineoplastic effect but causes inflammation (as in rheumatoid arthritis) |
hyaluronidase
spreading factor
Hyazyme | an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids |
coagulation factor
clotting factor | any of the factors in the blood whose actions are essential for blood coagulation |
fibrinogen
factor I | a protein present in blood plasma, converts to fibrin when blood clots |
releasing factor
releasing hormone
RF | a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland |
growth hormoneeleasing factor
GHRF | a releasing factor that accelerates the secretion of growth hormone by the anterior pituitary body |
| intrinsic factor | a substance produced by the mucosa of the stomach and intestines that is essential for the absorption of vitamin B, lack of intrinsic factor can result in pernicious anemia |
rhesus factor
Rh factor
Rh | a blood group antigen possessed by Rh-positive people, if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia |
prothrombin
factor II | a protein in blood plasma that is the inactive precursor of thrombin |
thromboplastin
thrombokinase
factor III | an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot |
calcium ion
factor IV | ion of calcium, a factor in the clotting of blood |
proaccelerin
prothrombin accelerator
accelerator factor
factor V | a coagulation factor |
proconvertin
cothromboplastin
stable factor
factor VII | a coagulation factor formed in the kidney under the influence of vitamin K |
antihemophilic factor
antihaemophilic factor
antihemophilic globulin
antihaemophilic globulin
factor VIII
Hemofil | a coagulation factor (trade name Hemofil) whose absence is associated with hemophilia A |
Christmas factor
factor IX | coagulation factor whose absence is associated with hemophilia B |
prothrombinase
factor X | coagulation factor that is converted to an enzyme that converts prothrombin to thrombin in a reaction that depends on calcium ions and other coagulation factors |
plasma thromboplastin antecedent
factor XI | coagulation factor whose deficiency results in a hemorrhagic tendency |
Hageman factor
factor XII | coagulation factor whose deficiency results in prolongation of clotting time of venous blood |