pi

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π

1. The 16th letter of the Greek alphabet, pi.
2. Symbol for the ratio of the circumference of a circle to its diameter, approximately 3.14159; symbol for osmotic pressure (Π).

Pi

Symbol for inorganic orthophosphate (should not be used when covalently linked to another moiety).

PI

Abbreviation for Periodontal Index.

Pi

Abbreviation for inorganic phosphate.

pI

The pH value for the isoelectric point of a given substance.

pi (π, Π),

(),
1. The 16th letter of the Greek alphabet.
2. (Π). Symbol for osmotic pressure; in mathematics, symbol for the product of a series.
3. (π). Symbol for the ratio of the circumference of a circle to its diameter (approximately 3.14159).
4. Symbol for pros.

PI

Abbreviation for:
package insert
pain intensity
pancreatic insufficiency
parallel imports  
pars intermedia
paternity index
Pearl Index
performance indicator, see there  
perfusion imaging
peripheral iridectomy
phosphatidyl inositol
physically impaired
physiologic index
pituitary
plaque inhibition
poison ivy
post-implantation
post-infection
post-injection
post-inoculation
post-irradiation
post-ischaemic
present illness
primary infection
principal investigator  
product information
prognostic index
proliferation index
protease inhibitor
pulmonary index
pulmonary infarction
pulmonary insufficiency
pulse inversion

π

Greek, lower case, pi.

Π

Abbreviation for osmotic pressure;
pi.

Pi

Abbreviation for inorganic orthophosphate.

PI

Abbreviation for Periodontal Index.

pI

Abbreviation for isoelectric point.

pi

(π, Π) ()
1. The 16th letter of the Greek alphabet (π, Π).
2. Osmotic pressure (Π).
3. mathematics Symbol for the product of a series (Π).
4. Symbol for the ratio of the circumference of a circle to its diameter (approximately 3.14159265) (π).

Π

Abbreviation for osmotic pressure.

PI

Abbreviation for Periodontal Index.

pI

Abbreviation for isoelectric point.

pi

, π ()
1. The 16th letter of the Greek alphabet.
2. (Π). Symbol for osmotic pressure; in mathematics, symbol for the product of a series.
References in periodicals archive ?
WILLIAM JONES (1675-1749) AS well as plaguing school children everywhere with the equals sign, it was also aWelsh mathematician who came up with the idea of using the Greek letter p to represent the ratio of a circumference of a circle to its diameter (3.14159 and so on...
The purists will wait for Pi Minute which, taking pi as 3.14159, is on 14 March at 1:59 p.m.
Pi (3.14159 ...) times 100 is about 314.16 and FW has 314 leaves and 16 lines on the last page.
Pi is the ratio of the circumference of a circle to its diameter: 3.14159 continuing as an infinite series.
Si bien otros temas como el recuento de los sistemas de numeracion, la investigacion de la distribucion de los numeros primos, las aproximaciones de raices cuadradas - como por ejemplo del numero dos -, el estudio de los diferentes poliedros (regulares o no) y ciertos problemas clasicos de construcciones geometricas, pueden considerarse tan representativos del mundo matematico como la historia de la constante universalmente conocida 3.14159 ..., tambien resulta cierto que ninguno de aquellos temas, y en particular ningun otro numero, ha recibido mas atencion individual en todo el sentido que [pi].
b = 3.14159 - [0.20086k2.sup.2.0313] for k [is less than] 1/8.
He checked a million pairs of these numbers for factors and obtained a value of 3.12772 for pi, which is within 0.5 percent of the actual value of 3.14159....
Its value is 3.14159 ...and so on, forever, in a nonrepeating decimal, for pi is an irrational number.