delta

delta
I. noun Etymology: Middle English deltha, from Greek delta, of Semitic origin; akin to Hebrew dāleth daleth Date: 13th century 1. the 4th letter of the Greek alphabet — see alphabet table 2. something shaped like a capital Greek delta; especially the alluvial deposit at the mouth of a river 3. an increment of a variable — symbol Δ 4. delta wavedeltaic adjective II. adjective Date: circa 1929 fourth in position in the structure of an organic molecule from a particular group or atom — symbol δ

New Collegiate Dictionary. 2001.

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  • Delta — commonly refers to: Delta (letter), Δ or δ in the Greek alphabet, also used as a mathematical symbol River delta, a landform at the mouth of a river Delta Air Lines, a major U.S. airline Delta may also refer to: Contents 1 Places …   Wikipedia

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  • delta — [ dɛlta ] n. m. • delta du Nil XIIIe; de delta « lettre grecque » I ♦ Quatrième lettre de l alphabet grec (Δ, δ), correspondant au d. En forme de delta. ⇒ deltoïde, triangulaire. Aile (en) delta. ⇒ deltaplane. ♢ Adj. inv. Phys. Rayon delta :… …   Encyclopédie Universelle

  • Delta A — launching Explorer 14 Function Expendable launch system Country of origin …   Wikipedia

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  • Delta D — Launch of a Delta D with Intelsat I Function Expendable launch system Country of origin …   Wikipedia

  • Delta J — Launch of the Delta J with Explorer 38 Function Expendable launch system Country of origin   …   Wikipedia

  • Delta M — Launch of the first Delta M with Intelsat 301 Function Expendable launch system Country of origin …   Wikipedia

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