propositus noun. [prǝ(ʊ)'pɒzɪtǝs] Pl. -ti [-tʌɪ]. M18.
[Latin, pa. pple of proponere: see PROPONE.]
An individual to whom the family relationships of others are reckoned; spec. (a) Medicine the first member of a family to be investigated by a researcher; (b) Law a testator when making a will.

[TahlilGaran] English Dictionary ▲