What's the plural form of hallucinosis? Here's the word you're looking for.
Answer
The noun hallucinosis can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be hallucinosis.
However, in more specific contexts, the plural form can also be hallucinoses e.g. in reference to various types of hallucinoses
or a collection of hallucinoses.
Examples
Patients with alcoholic hallucinosis experience visual, auditory, or tactile hallucinations but otherwise have a clear sensorium.