英语词汇“delta”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

del·ta

(dĕltə)

1. The fourth letter of the Greek alphabet. See Table at alphabet.

2. An object shaped like a triangle.

a. A usually triangular alluvial deposit at the mouth of a river.

b. A similar deposit at the mouth of a tidal inlet, caused by tidal currents.

4. Mathematics A finite increment in a variable.

adj.
Chemistry

1. Being in the fourth position relative to a designated carbon atom in an organic molecule at which an atom or a group may be substituted.

2. Referring to the fourth of a group of isomers, or molecules of similar origin or properties, determined arbitrarily by those who discover or classify them. Used in combination.

[Middle English, from Latin, from Greek, of Phoenician origin; see dl in the Appendix of Semitic roots.]

del·taic (-tāĭk), deltic (-tĭk) adj.

delta

satellite image of the

Nile River delta, Egypt

单词	delta
释义	del·ta (dĕltə) n. 1. The fourth letter of the Greek alphabet. See Table at alphabet. 2. An object shaped like a triangle. 3. a. A usually triangular alluvial deposit at the mouth of a river. b. A similar deposit at the mouth of a tidal inlet, caused by tidal currents. 4. Mathematics A finite increment in a variable. adj. Chemistry 1. Being in the fourth position relative to a designated carbon atom in an organic molecule at which an atom or a group may be substituted. 2. Referring to the fourth of a group of isomers, or molecules of similar origin or properties, determined arbitrarily by those who discover or classify them. Used in combination. [Middle English, from Latin, from Greek, of Phoenician origin; see dl in the Appendix of Semitic roots.] del·taic (-tāĭk), deltic (-tĭk) adj. delta satellite image of the Nile River delta, Egypt
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