pseudo-unimolecular [obsolete]

https://doi.org/10.1351/goldbook.P04935
A term sometimes used as synonymous with pseudo-first-order, but is inherently meaningless.
See:
molecularity
,
order of reaction
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1154 [Terms] [Paper]