Pathology. a mild infection, most often seen in children or young adults, caused by a small virus ((the human parvovirus B19)) and marked by a blotchy rash on the cheeks, arms, and legs.
a mild infectious disease of childhood, caused by a virus, characterized by fever and a red rash spreading from the cheeks to the limbs and trunk Also called slapped-cheek disease Technical name erythema infectiosum
fifth disease n.
See erythema infectiosum.
noun 1. any class or group in society other than the nobility, the clergy, the middle class, and the press.
noun 1. a theoretical force in nature in addition to the strong and weak forces, gravitation, and the electromagnetic force. noun 1. a hypothetical non-Newtonian repulsive component of the force of gravity, postulated as an addition to the four known fundamental forces (gravitational, electromagnetic, strong, and weak) fifth force (fĭfth) Any of various hypothetical, very […]
adjective 1. denoting developments in computer design to produce machines with artifical intelligence
- Fifth-generation computer
noun the generation of computers being designed to expand the use of artificial intelligence, natural language, and expert systems Usage Note computing