Nouns starting with A

• arterial sclerosis — Noun – English ～ sclerosis of the arterial walls
• Asplenium scolopendrium — Noun – English ～ Eurasian fern with simple lanceolate fronds
• Andropogon scoparius — Noun – English ～ handsome hardy North American grass with foliage turning pale bronze in autumn
• Aquilegia scopulorum calcarea — Noun – English ～ columbine of the Rocky Mountains having long-spurred blue flowers
• Apgar score — Noun – English ～ an assessment of the physical condition of a newborn infant; involves heart rate and muscle tone and respiratory effort and color and reflex responsiveness
• Allium scorodoprasum — Noun – English ～ European leek cultivated and used like leeks
• annular scotoma — Noun – English ～ a circular scotoma surrounding the center of the field of vision
• active matrix screen — Noun – English ～ a type of LCD screen used for some portable computers; there is a separate circuit for each pixel
• Allen screw — Noun – English ～ a screw with a hexagonal hole in the head
• Aleksandr Scriabin — Noun – English ～ Russian composer of orchestral and piano music (1872-1915)
• Aleksandr Nikolayevich Scriabin — Noun – English ～ Russian composer of orchestral and piano music (1872-1915)
• Augustin Eugene Scribe — Noun – English ～ French playwright (1791-1861)
• Aramaic script — Noun – English ～ an alphabetical (or perhaps syllabic) script used since the 9th century BC to write the Aramaic language; many other scripts were subsequently derived from it
• alphabetic script — Noun – English ～ a writing system based on alphabetic characters
• Anthrenus scrophulariae — Noun – English ～ a small black and red and white carpet beetle
• Alpine scurvy — Noun – English ～ a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments
• Apis mellifera scutellata — Noun – English ～ a strain of bees that originated in Brazil in the 1950s as a cross between an aggressive African bee and a honeybee; retains most of the traits of the African bee; now spread as far north as Texas
• Aral Sea — Noun – English ～ a lake to the east of the Caspian Sea lying between Kazakhstan and Uzbekistan
• Arabian Sea — Noun – English ～ a northwestern arm of the Indian Ocean between India and Arabia
• Arafura Sea — Noun – English ～ a part of the western Pacific Ocean to the north of Australia and to the south of New Guinea and the eastern islands of Indonesia

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