| 单词 | delta |
| 释义 | delta (once / 1174 pages) n Named for the fourth letter of the Greek alphabet (shaped like a triangle), a delta is a triangular area where a major river divides into several smaller parts that usually flow into a larger body of water. The first so-called delta was the Nile Delta, named by the Greek historian Herodotus. What makes a delta so special? Alluvial deposits are the rich mineral soil that can be found in the delta. Despite frequent floods, farmers often settle in a delta for this reason. Here's some more fun delta trivia: the deltoid muscles in your shoulders are named after the fourth letter of the Greek alphabet too. WORD FAMILYdelta: deltas USAGE EXAMPLESHawaii Volcanoes National Park said Monday no one was injured when the lava delta collapsed and sent showers of volcanic rock into the air. Washington Times(Jan 02, 2017) Delta Air Lines last year added the same capability to its phone app. New York Times(Jan 02, 2017) Delta, in its statement, did not disclose specific terms of the agreement. Reuters(Dec 27, 2016) 1n the 4th letter of the Greek alphabet Hyper alphabetic character, letter, letter of the alphabet the conventional characters of the alphabet used to represent speech 2n a low triangular area of alluvial deposits where a river divides before entering a larger body of water the Mississippi River delta the Nile delta Hyper alluvial deposit, alluvial sediment, alluvion, alluvium clay or silt or gravel carried by rushing streams and deposited where the stream slows down formation, geological formation(geology) the geological features of the earth 3n an object shaped like an equilateral triangle Hyper equiangular triangle, equilateral triangle a three-sided regular polygon |
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