(dated) Registrar, clerk. [16th-19th c.] / A professional who calculates financial values associated with uncertain events subject to risk, such as insurance premiums or pension contributions.

plural of actuary

Of or pertaining to actuaries. / Relating to statistical calculation, especially pertaining to insurance.

By actuarial principles. / In a manner performed by an actuary. / From an actuarial perspective.

(applied mathematics, insurance, finance) The discipline within applied mathematics dealing with risk assessment and the modelling of uncertainty; the rigorous application of mathematical and statistical methods to assess risk, in industries including insurance and finance.

The role or status of actuary.

plural of actuaryship