propositus

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UK/prəʊˈpɒzɪtəs/UK/prəˈpɒzɪtəs/US/proʊˈpɑzətəs/US/prəˈpɑzətəs/

noun

The first identified male case of an inherited disease in a family; the proband or index case.

“The propositus was an elderly man who passed on the disorder to three of his four children and 9 of 14 grandchildren.”

OriginLatin prōpositus →
Scrabble 14
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Meanings

nounpropositus (plural propositi)

plural propositi

  1. biologyThe first identified male case of an inherited disease in a family; the proband or index case.

    The propositus was an elderly man who passed on the disorder to three of his four children and 9 of 14 grandchildren.

Origin

  1. Latinprōpositus
  2. Englishpropositus

Borrowed from Latin prōpositus.

More words from Latin

Full word history & related roots →

Rhymes & wordplay

Anagrams

suppositor
Cite this entry
APA

propositus. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/propositus

MLA

“propositus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/propositus. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “propositus,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/propositus.

Source: propositus on Wiktionary, CC BY-SA 4.0.