noun-modifying (irregular), noun which may take the genitive case particle 'no'
Medical term describing a condition, lesion, or episode that occurs as a single, isolated instance rather than multiple or recurrent. Often contrasted with 多発性 (multiple).
Antonyms: 多発性
He was diagnosed with a single cerebral infarction.
This disease is often solitary.
multiple; poly-
Compound of 単発 (single occurrence) + 性 (nature, -ity). The exact historical derivation is uncertain; the spelling is conventionally associated with the medical meaning.