zeta

https://doi.org/10.1351/goldbook.Z06745
See: ΞΆ (beginning of 'z')
Source:
PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 999 (https://doi.org/10.1351/pac199668040957)