Kallmann syndrome

noun

A genetic condition characterised by a failure to start or complete puberty, and loss or alteration of the sense of smell.

Meanings

nounKallmann syndrome (uncountable)
  1. uncountableA genetic condition characterised by a failure to start or complete puberty, and loss or alteration of the sense of smell.

    Up to 10% of people with Kallmann syndrome also have a “micropenis”; more prevalent symptoms are low or fluctuating testosterone levels.

    2025 November 13, Philip Oltermann, “Did Hitler really have a ‘micropenis’? The dubious documentary analysing the dictator’s DNA”, in The Guardian, →ISSN

Origin

From German Kallmann + syndrome, described in a 1944 paper by Franz Josef Kallmann, a German-American geneticist.

Full word history & related roots →
Cite this entry
APA

Kallmann syndrome. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Kallmann%20syndrome

MLA

“Kallmann syndrome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Kallmann%20syndrome. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Kallmann syndrome,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Kallmann%20syndrome.

Source: Kallmann syndrome on Wiktionary, CC BY-SA 4.0.