delta

Word family

Related topics: Letters & punctuation, Geography, Geology

del·ta /ˈdeltə/ noun [countableC]

1. SLAthe fourth letter of the Greek alphabet 德尔塔〔希腊字母表的第四个字母，即 ∆，δ〕

2 SGan area of low land where a river spreads into many smaller rivers near the sea 〔河口的〕三角洲

the Nile delta

尼罗河三角洲

Examples from the Corpus

delta• From these we get our word alphabet, delta, and gamma which gives us gamma rays.• They are called delta frames and, typically, may consist of no more than 5 kilobytes of data.• They change the angle of attack from acute within the central delta, to near neutral over the outer triangular sail panel.• Tom Pratt's stack of four deltas lofts his Pentax unit.• the Mississippi delta• He too migrated to Cairo to find a job, in his case from a village in the Nile delta.• Left: Typical of the rigid frame using glass fibre tubing on the earlier steerable deltas is seen on this example.• This allows him to supervise all the family's vast landholdings in the delta.

From Longman Business Dictionary

deltadel·ta /ˈdeltə/ noun [countableC usually singular]

1STATISTICS a change in an amount

2FINANCE the relationship between a change in price of an option (=right to buy or sell shares etc) to the change in price of the underlying asset

Origin delta

(1300-1400) Greek from a Semitic language

del·ta noun

Chinese

Syllable

Corpus