psi

As nouns the difference between psi and poi

is that psi is the twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek while poi is a national food of the Hawaiians, made by baking and pounding the kalo (or taro) root, and reducing it to a thin paste, which is allowed to ferment.

As an initialism psi

is pounds per square inch an imperial unit of pressure.

As nouns the difference between phi and psi

is that phi is Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph" while psi is the twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.

As an initialism psi is

pounds per square inch an imperial unit of pressure.

As a verb pis

is .

As an adjective psi is

dog (when used attributively).

As a noun psi is

psi (greek letter).

As nouns the difference between taxonomy and psi

is that taxonomy is the science or the technique used to make a classification while psi is psi (greek letter).

As an adjective psi is

dog (when used attributively).

As nouns the difference between psi and lbs

is that psi is the twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek while lbs is plural of lang=en; pounds.

As an initialism psi

is pounds per square inch an imperial unit of pressure.

Psi is a see also of mmhg.

As nouns the difference between psi and mmhg

is that psi is psi (greek letter) while mmhg is a unit of pressure equal to the amount of fluid pressure one millimeter deep in mercury at zero degrees centigrade on earth.

As an adjective psi

is dog (when used attributively).