hub

/hʌb/

柯林斯星级

BNC频率: 9909

现代语料频率: 6564

托福 GRE

n. 毂, 木片, 中心

[计] 插座; 插孔; 集线器, 集中器, 连接器, 中继站

A glucoside extracted from rhubarb as a bitter, yellow, crystalline powder, and yielding chrysophanic acid on decomposition.

plural of chuba

An orange-red crystalline substance, C15H10O5, obtained from the buckthorn, rhubarb, etc., and regarded as a derivative of anthraquinone

-- so called from a species of rhubarb (Rheum emodei).

An order of fishes including a vast number of freshwater species such as the carp, loach, chub, etc.

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