One of 102 counties in Illinois, United States. County seat: Jerseyville.

An assassin who carries out counterassassination.

(US, slang) A member of the Delta Kappa Epsilon fraternity, founded at Yale College in 1844.

(medicine) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus. / The use of ultrasound to form images of underwater structures.