# 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

[pī]
1 Ρ, π, the sixteenth letter of the Greek alphabet.
2 (in mathematics) the ratio of a circle's circumference to its diameter.

## 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-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).

## Pi

inorganic phosphate

## 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.

## Pi

inorganic orthophosphate.

## pI

isoelectric point.

## pi

the sixteenth letter of the Greek alphabet, π or π.
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