释义 |
delta
—delta /ˈdel.tə/ aep /-t̬ə/
Ⅰ noun (LETTER) ► F0 [C or U] (SYMBOL δ) the fourth letter of the Greek alphabet→ COMPARE ALPHA(Cf. ↑alpha) noun, BETA(Cf. ↑beta) noun, GAMMA(Cf. ↑gamma)
Ⅱ noun (RIVER) ► F0 [C] an area of low, flat land, sometimes shaped like a triangle, where a river divides into several smaller rivers before flowing into the sea: » the Mississippi delta» the delta of the NileThesaurus+: ↑Parts of watercourses |