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Definition of "delta" [del•ta]

  • The fourth letter of the Greek alphabet. See Table at alphabet. (noun)
  • An object shaped like a triangle. (noun)
  • A usually triangular alluvial deposit at the mouth of a river. (noun)
  • A similar deposit at the mouth of a tidal inlet, caused by tidal currents. (noun)
  • Mathematics A finite increment in a variable. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "delta" in a sentence
  • "The term "delta" originally was used to measure risk in options to buy or sell stocks"
  • "Joining, what they call a delta formation, the final formation, and that's when the jet crashed and that crash caused damages to eight structures."
  • "These trajectories can trade ~15% reduction in delta v for a 100 day travel time, and therefore"