noun Etymology: Latin ~us, gerundive of probare Date: circa 1929 an individual affected with a disorder who is the first subject in a study (as of a genetic character in a family lineage)
PROBAND
Meaning of PROBAND in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012