a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise
块茎。
a tuberous root, e.g. of the dahlia
块根。
【剖】 结节,隆起,肿胀。
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tubern.块茎;结节;隆起;肿胀;块根
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tuben.管;管子;管状物;伦敦地铁;电子管;真空管;阴极射线管;管料;自行车内胎
" mid 17th cent.: from Latin, literally ‘hump, swelling’. "