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nounan agency of the Intelligence Community that conducts advanced research and development related to information technology
Definition that contains arda
- abnormality retardation sufficient to fall outside the normal range of intelligence
- idiocy extreme mental retardation
- abydos an ancient Greek colony on the Asiatic side of the Dardanelles; scene of the legend of Hero and Leander
- bonito flesh of mostly Pacific food fishes of the genus Sarda of the family Scombridae; related to but smaller than tuna
- imbecility retardation more severe than a moron but not as severe as an idiot
- mongolianism a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
- bitter cress any of various herbs of the genus Cardamine, having usually pinnate leaves and racemes of white, pink or purple flowers; cosmopolitan except Antarctic
- gargoylism hereditary disease (autosomal recessive) consisting of an error is mucopolysaccharide metabolism; characterized by severe abnormalities in development of skeletal cartilage and bone and mental retardation
- myelomeningocele a congenital defect of the central nervous system in which a sac containing part of the spinal cord and its meninges protrude through a gap in the vertebral column; frequently accompanied by hydrocephalus and mental retardation
- hurler's disease hereditary disease (autosomal recessive) consisting of an error is mucopolysaccharide metabolism; characterized by severe abnormalities in development of skeletal cartilage and bone and mental retardation