Definition of psi in English:
1The twenty-third letter of the Greek alphabet (Ψ, ψ), transliterated as ‘ps’.
- Available in three sizes and able to pump up to a 160 psi max pressure, the pump will be available in September.
- Variable psi, used within the AHCPR guidelines, can help improve patient comfort.
- The psi / word association was randomly chosen to be either the first or second of these experiments.