serodiagnosis se·ro·di·ag·no·sis (sēr'ō-dī'əg-nō'sĭs)
n. pl. se·ro·di·ag·no·ses (-sēz)
Diagnosis of disease based on reactions in the blood serum.
|(used as a nonsense word by children to express approval or to represent the longest word in English.)|
|the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).|