English edit

Etymology 1 edit

on +‎ setter

Noun edit

onsetter (plural onsetters)

  1. (mining, historical, UK, dialect, Northern England) A worker at the bottom of a mineshaft who exchanges the empty and full corves.

Etymology 2 edit

onset +‎ -er

Noun edit

onsetter (plural onsetters)

  1. (medicine) One who undergoes the onset of a condition.
    • 2008, Anna Hyun, Factors Associated with Stability and Change in Offending Among School Enrolled Adolescents and Their Transitions into Emerging Adulthood:
      Compared to normative stayers, increasing hyperactivity and maltreatment during childhood were associated with a likelihood of being a late onsetter.

Anagrams edit