D defs.my
Entry 2 senses Webster, 1913

Actuary

/ăk'-cho͞o-ĕr'-ēˌ/ · Ac·tu·a·ry · IPA /ˈæktʃuˌɛɹi/
01 n. A registrar or clerk; -- used originally in courts of civil law jurisdiction, but in Europe used for a clerk or registrar generally.
pl. Actuaries
  1. 1.
    A registrar or clerk; -- used originally in courts of civil law jurisdiction, but in Europe used for a clerk or registrar generally.(Law)
  2. 2.
    The computing official of an insurance company; one whose profession it is to calculate for insurance companies the risks and premiums for life, fire, and other insurances.