| 单词 | delta |
| 释义 | Word Frequency delta(ˈdɛltə) noun 1. the fourth letter in the Greek alphabet (Δ, δ), a consonant transliterated as d 2. an object resembling a capital delta in shape 3. (capital when part of name) the flat alluvial area at the mouth of some rivers where the mainstream splits up into several distributaries the Mississippi Delta 4. mathematics a finite increment in a variable Derived forms deltaic (dɛlˈteɪɪk) or deltic (ˈdeltic) adjective Word origin C16: via Latin from Greek, of Semitic origin; compare Hebrew dālethWord Frequency Delta 1(ˈdɛltə) noun 1. (foll by the genitive case of a specified constellation) usually the fourth brightest star in a constellation 2. any of a group of US launch vehicles used to put unmanned satellites into orbit 3. communications a code word for the letter d Word Frequency Delta 2(ˈdɛltə) noun a state of Nigeria, on the Niger river delta on the Gulf of Guinea. Capital: Asaba. Pop: 4 098 391 (2006). Area: 17 698 sq km (6833 sq miles) |
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